SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                ----------------

                                  SCHEDULE 13G
                                 (Rule 13d-102)

                                ----------------

                                 Amendment No. 1

    INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b), (c)
        AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 UNDER THE
                        SECURITIES EXCHANGE ACT OF 1934

                            AMERIVEST PROPERTIES INC.
                                (Name of Issuer)

                    COMMON STOCK, $0.001 PAR VALUE PER SHARE
                         (Title of Class of Securities)

                                    03071L101
                                 (CUSIP Number)

                                December 31, 2006
             (Date of Event Which Requires Filing of this Statement)

     Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

         [ ] Rule 13d-1(b)

         [X] Rule 13d-1(c)

         [ ] Rule 13d-1(d)

-----------

         * The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

         The information required in the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 2 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Davidson Kempner Partners
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                          New York
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES             -----------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     393,434
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     393,434
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     393,434
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     1.6%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     PN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 3 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           Delaware
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     645,907
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     645,907
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     645,907
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     2.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     PN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 4 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        M. H. Davidson & Co.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           New York
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     54,772
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     54,772
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     54,772
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     0.2%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     PN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 5 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Davidson Kempner International, Ltd.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           British Virgin Islands
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     982,536
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     982,536
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     982,536
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     4.1%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     CO
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 6 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Serena Limited
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           Cayman Islands
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     27,351
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     27,351
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     27,351
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     0.1%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     CO
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 7 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        MHD Management Co.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           New York
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     393,434
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     393,434
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     393,434
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     1.6%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     PN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 8 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Davidson Kempner Advisers Inc.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           New York
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     645,907
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     645,907
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     645,907
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     2.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IA
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                                PAGE 9 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Davidson Kempner International Advisors, L.L.C.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           Delaware
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     1,009,887
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     1,009,887
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     1,009,887
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     4.2%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     OO
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 10 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Thomas L. Kempner, Jr.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 11 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Marvin H. Davidson
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 12 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Stephen M. Dowicz
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 13 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Scott E. Davidson
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 14 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Michael J. Leffell
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 15 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Timothy I. Levart
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United Kingdom & United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 16 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Robert J. Brivio, Jr.
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 17 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Eric P. Epstein
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 18 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Anthony A. Yoseloff
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 19 OF 35

------------------------------------------------------------------------------
(1)     NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Avram Z. Friedman
------------------------------------------------------------------------------
(2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                                                                       (a)[ ]
                                                                       (b)[X]
------------------------------------------------------------------------------
(3)     SEC USE ONLY
------------------------------------------------------------------------------
(4)     CITIZENSHIP OR PLACE OF ORGANIZATION
                           United States
------------------------------------------------------------------------------

NUMBER OF         (5)      SOLE VOTING POWER
                                     0
SHARES            ------------------------------------------------------------

BENEFICIALLY      (6)      SHARED VOTING POWER
                                     2,104,000
OWNED BY          ------------------------------------------------------------

EACH              (7)      SOLE DISPOSITIVE POWER
                                     0
REPORTING         ------------------------------------------------------------

PERSON WITH       (8)      SHARED DISPOSITIVE POWER
                                     2,104,000
------------------------------------------------------------------------------
        (9)      AGGREGATE AMOUNT BENEFICIALLY OWNED
                 BY EACH REPORTING PERSON
                                     2,104,000
------------------------------------------------------------------------------
        (10)     CHECK BOX IF THE AGGREGATE AMOUNT
                 IN ROW (9) EXCLUDES CERTAIN SHARES                       [ ]
------------------------------------------------------------------------------
        (11)     PERCENT OF CLASS REPRESENTED
                 BY AMOUNT IN ROW (9)
                                     8.7%
------------------------------------------------------------------------------
        (12)     TYPE OF REPORTING PERSON
                                     IN
------------------------------------------------------------------------------




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 20 OF 35


ITEM 1(a).    NAME OF ISSUER:

              Amerivest Properties Inc. (the "Company")

ITEM 1(b).    ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

              1780 S Bellaire St., Suite 100
              Denver, Colorado 80222

ITEM 2(a).    NAME OF PERSON FILING:

         This Statement is filed by each of the entities and persons listed
below, all of whom together are referred to herein as the "Reporting Persons":

              (i)      Davidson Kempner Partners, a New York limited partnership
                       ("DKP");

              (ii)     Davidson Kempner Institutional Partners, L.P., a Delaware
                       limited partnership ("DKIP");

              (iii)    M. H. Davidson & Co., a New York limited partnership
                       ("CO");

              (iv)     Davidson Kempner International, Ltd., a British Virgin
                       Islands corporation ("DKIL");

              (v)      Serena Limited, a Cayman Islands corporation ("Serena");

              (vi)     MHD Management Co., a New York limited partnership and
                       the general partner of DKP ("MHD");

              (vii)    Davidson Kempner Advisers Inc., a New York corporation
                       and the general partner of DKIP ("DKAI"), which is
                       registered as an investment adviser with the U.S.
                       Securities and Exchange Commission;

              (viii)   Davidson Kempner International Advisors, L.L.C., a
                       Delaware limited liability company and the manager of
                       DKIL and Serena ("DKIA"); and

              (ix)     Messrs. Thomas L. Kempner, Jr., Marvin H. Davidson,
                       Stephen M. Dowicz, Scott E. Davidson, Michael J. Leffell,
                       Timothy I. Levart, Robert J. Brivio, Jr., Anthony A.
                       Yoseloff, Eric P. Epstein and Avram Z. Friedman
                       (collectively, the "Principals"), who are the general
                       partners of CO and MHD, the sole managing members of DKIA
                       and the sole stockholders of DKAI.

ITEM 2(b).    ADDRESS OF PRINCIPAL BUSINESS OFFICE:

         The address of the principal business office of each of the Reporting
Persons is c/o Davidson Kempner Partners, 65 East 55th Street, 19th Floor, New
York, New York 10022.




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 21 OF 35


ITEM 2(c).    CITIZENSHIP:

              (i)      DKP - a New York limited partnership

              (ii)     DKIP - a Delaware limited partnership

              (iii)    CO - a New York limited partnership

              (iv)     DKIL - a British Virgin Islands corporation

              (v)      Serena - a Cayman Islands corporation

              (vi)     MHD - a New York limited partnership

              (vii)    DKAI - a New York corporation

              (viii)   DKIA - a Delaware limited liability company

              (ix)     Thomas L. Kempner, Jr. - United States

              (x)      Marvin H. Davidson - United States

              (xi)     Stephen M. Dowicz - United States

              (xii)    Scott E. Davidson -United States

              (xiii)   Michael J. Leffell - United States

              (xiv)    Timothy I. Levart - United Kingdom & United States

              (xv)     Robert J. Brivio, Jr. - United States

              (xvi)    Eric P. Epstein - United States

              (xvii)   Anthony A. Yoseloff - United States

              (xviii)  Avram Z. Friedman - United States

ITEM 2(d).    TITLE OF CLASS OF SECURITIES:

         COMMON STOCK, $0.001 PAR VALUE

ITEM 2(e).    CUSIP NUMBER:

         03071L101

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c),
CHECK WHETHER THE PERSON FILING IS A:

              (a)[ ]  Broker or dealer registered under Section 15 of the Act;




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 22 OF 35

              (b)[ ]  Bank as defined in Section 3(a)(6) of the Act;

              (c)[ ]  Insurance Company as defined in Section 3(a)(19) of the
                      Act;

              (d)[ ]  Investment Company registered under Section 8 of the
                      Investment Company Act of 1940;

              (e)[ ]  Investment Adviser registered under Section 203 of the
                      Investment Advisers Act of 1940: see Rule
                      13d-1(b)(1)(ii)(E);

              (f)[ ]  Employee Benefit Plan, Pension Fund which is subject to
                      Act the provisions of the Employee Retirement Income
                      Security of 1974 or Endowment Fund; see Rule
                      13d-1(b)(1)(ii)(F);

              (g)[ ]  Parent Holding Company, in accordance with Rule
                      13d-1(b)(ii)(G);

              (h)[ ]  Savings Associations as defined in Section 3(b) of the
                      Federal Deposit Insurance Act;

              (i)[ ]  Church Plan that is excluded from the definition of an
                      investment company under Section 3(c)(14) of the
                      Investment Company Act of 1940;

              (j)[ ]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

ITEM 4.       OWNERSHIP.

         The Principals may be deemed to beneficially own an aggregate of
2,104,000 shares as a result of their voting and dispositive power over the
2,104,000 shares beneficially owned by DKP, DKIP, DKIL, Serena, and CO.

         DKIA may be deemed to beneficially own the 982,536 shares beneficially
owned by DKIL and the 27,351 shares beneficially owned by Serena as a result of
its voting and dispositive power over those shares. DKAI may be deemed to
beneficially own the 645,907 shares beneficially owned by DKIP as a result of
its voting and dispositive power over those shares. MHD may be deemed to
beneficially own the 393,434 shares beneficially owned by DKP as a result of its
voting and dispositive power over those shares.

         A.   DKP

              (a) Amount beneficially owned: 393,434

              (b) Percent of class: 1.6%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 393,434

                  (iii) sole power to dispose or to direct the disposition: 0




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 23 OF 35


                  (iv)  shared power to dispose or to direct the disposition:
                        393,434

         B.   DKIP

              (a) Amount beneficially owned: 645,907

              (b) Percent of class: 2.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 645,907

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        645,907

         C.   CO

              (a) Amount beneficially owned: 54,772

              (b) Percent of class: 0.2%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 54,772

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        54,772

         D.   DKIL

              (a) Amount beneficially owned: 982,536

              (b) Percent of class: 4.1%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 982,536

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        982,536




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 24 OF 35


         E.   Serena

              (a) Amount beneficially owned: 27,351

              (b) Percent of class: 0.1%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 27,351

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        27,351

         F.   MHD

              (a) Amount beneficially owned: 393,434

              (b) Percent of class: 1.6%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 393,434

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        393,434

         G.   DKAI

              (a) Amount beneficially owned: 645,907

              (b) Percent of class: 2.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 645,907

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        645,907

         H.   DKIA

              (a) Amount beneficially owned: 1,009,887

              (b) Percent of class: 4.2%



Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 25 OF 35


              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 1,009,887

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        1,009,887

         I.   Thomas L. Kempner, Jr.

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         J.   Marvin H. Davidson

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         K. Stephen M. Dowicz

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 26 OF 35


                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         L.   Scott E. Davidson

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         M. Michael J. Leffell

              (a) Amount beneficially owned. 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         N.   Timothy I. Levart

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0



Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 27 OF 35


                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         O.   Robert J. Brivio, Jr.

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         P.   Eric P. Epstein

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000

         Q.   Anthony A. Yoseloff

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 28 OF 35


         R.   Avram Z. Friedman

              (a) Amount beneficially owned: 2,104,000

              (b) Percent of class: 8.7%

              (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote: 0

                  (ii)  shared power to vote or to direct the vote: 2,104,000

                  (iii) sole power to dispose or to direct the disposition: 0

                  (iv)  shared power to dispose or to direct the disposition:
                        2,104,000


ITEM 5.       OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

              Not applicable.

ITEM 6.       OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

         The partners, members or stockholders of each of the Reporting Persons,
including the Principals, have the right to participate in the receipt of
dividends from, or proceeds from the sale of, the securities held for the
account of such Reporting Person in accordance with their ownership interests in
such Reporting Person. The Reporting Persons disclaim all beneficial ownership
as affiliates of a registered investment adviser, and, in any case, disclaim
beneficial ownership except as to the extent of their pecuniary interest in the
shares. The Reporting Persons have elected to file Schedule 13G although such
filing may not be required under the Securities Exchange Act of 1934, as amended
(the "Act").

ITEM 7.       IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
              THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.

              Not applicable.

ITEM 8.       IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

              See Item 4.

ITEM 9.       NOTICE OF DISSOLUTION OF GROUP.

              Not applicable.




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 29 OF 35


ITEM 10.     CERTIFICATION.  (if filing pursuant to Rule 13d-1(c))

         Each of the Reporting Persons hereby makes the following certification:

         By signing below we certify that, to the best of our knowledge and
belief, the securities referred to above were not acquired and are not held for
the purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.





Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 30 OF 35



                                   SIGNATURES

         After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this statement is
true, complete and correct.

DATED:  February 14, 2007               DAVIDSON KEMPNER PARTNERS
                                        By: MHD Management Co.,
                                        its General Partner

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER INSTITUTIONAL PARTNERS,
                                        L.P.
                                        By: Davidson Kempner Advisers Inc.,
                                        its General Partner

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  President

                                        M.H. DAVIDSON & CO.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER INTERNATIONAL, LTD.
                                        By: Davidson Kempner International
                                        Advisors, L.L.C.,
                                        its Investment Manager

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member

                                        SERENA LIMITED
                                        By: Davidson Kempner International
                                        Advisors, L.L.C.,
                                        its Investment Manager

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member



Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 31 OF 35


                                        MHD MANAGEMENT CO.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER ADVISERS INC.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  President

                                        DAVIDSON KEMPNER INTERNATIONAL ADVISORS,
                                        L.L.C.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Thomas L. Kempner, Jr.

                                        /s/ Marvin H. Davidson
                                        -----------------------------------
                                        Marvin H. Davidson

                                        /s/ Stephen M. Dowicz
                                        -----------------------------------
                                        Stephen M. Dowicz

                                        /s/ Scott E. Davidson
                                        -----------------------------------
                                        Scott E. Davidson

                                        /S/ Michael J. Leffell
                                        -----------------------------------
                                        Michael J. Leffell

                                        /s/ Timothy I. Levart
                                        -----------------------------------
                                        Timothy I. Levart

                                        /s/ Robert J. Brivio, Jr.
                                        ----------------------------------
                                        Robert J. Brivio, Jr.

                                        /s/ Eric P. Epstein
                                        -----------------------------------
                                        Eric P. Epstein

                                        /S/ Anthony A. Yoseloff
                                        -----------------------------------
                                        Anthony A. Yoseloff




Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 32 OF 35



                                        /s/ Avram Z. Friedman
                                        -----------------------------------
                                        Avram Z. Friedman

















Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 33 OF 35



                                    EXHIBIT 1

                           JOINT ACQUISITION STATEMENT

                            PURSUANT TO RULE 13d-1(k)

The undersigned  acknowledge and agree that the foregoing  statement on Schedule
13G is filed  on  behalf  of each of the  undersigned  and  that all  subsequent
amendments to this  statement on Schedule 13G,  shall be filed on behalf of each
of the undersigned  without the necessity of filing additional joint acquisition
statements.  The undersigned  acknowledge that each shall be responsible for the
timely filing of such  amendments,  and for the completeness and accuracy of the
information concerning him or it contained therein, but shall not be responsible
for the  completeness  and accuracy of the  information  concerning  the others,
except to the  extent  that he or it knows or has  reason to  believe  that such
information is inaccurate.

DATED:  February 14, 2007               DAVIDSON KEMPNER PARTNERS
                                        By: MHD Management Co.,
                                        its General Partner

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER INSTITUTIONAL PARTNERS,
                                        L.P.
                                        By: Davidson Kempner Advisers Inc.,
                                        its General Partner

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  President

                                        M.H. DAVIDSON & CO.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER INTERNATIONAL, LTD.
                                        By: Davidson Kempner International
                                        Advisors, L.L.C.,
                                        its Investment Manager

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member



Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 34 OF 35


                                        SERENA LIMITED
                                        By: Davidson Kempner International
                                        Advisors, L.L.C.,
                                        its Investment Manager

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member

                                        MHD MANAGEMENT CO.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Managing Partner

                                        DAVIDSON KEMPNER ADVISERS INC.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  President

                                        DAVIDSON KEMPNER
                                        INTERNATIONAL ADVISORS, L.L.C.

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Name:   Thomas L. Kempner, Jr.
                                        Title:  Executive Managing Member

                                        /s/ Thomas L. Kempner, Jr.
                                        -----------------------------------
                                        Thomas L. Kempner, Jr.

                                        /s/ Marvin H. Davidson
                                        -----------------------------------
                                        Marvin H. Davidson

                                        /s/ Stephen M. Dowicz
                                        -----------------------------------
                                        Stephen M. Dowicz

                                        /s/ Scott E. Davidson
                                        -----------------------------------
                                        Scott E. Davidson

                                        /s/ Michael J. Leffell
                                        -----------------------------------
                                        Michael J. Leffell

                                        /s/ Timothy I. Levart
                                        -----------------------------------
                                        Timothy I. Levart



Schedule 13G/A
CUSIP No. 03071L101                                               PAGE 35 OF 35


                                        /s/ Robert J. Brivio, Jr.
                                        -----------------------------------
                                        Robert J. Brivio, Jr.

                                        /s/ Eric P. Epstein
                                        -----------------------------------
                                        Eric P. Epstein

                                        /S/ Anthony A. Yoseloff
                                        -----------------------------------
                                        Anthony A. Yoseloff

                                        /s/ Avram Z. Friedman
                                        -----------------------------------
                                        Avram Z. Friedman