Junk E-Mail Filter update September 2005 (KB904631) Problem - HELP!!

Hi everybody,
I am stuck in this simple installation , I don't know to
to solve it.
I have the following scenario:
Windows Installer 3.1 v.2 (3.1.4000.2435)
Office 2003 SP2 (Outlook 2003 11.6568.6568)
Windows XP SP2 (Build 2600.xpsp_sp2_gdr.050301-1519)

and I cannot install any Junk-Email update, I am
including the log file. Don't tell me that I have to uninstall Windows
Installer because I don't want to run any risk to install the OS and all the
programs again.

This is the error from the log file (Ohotfix):
*********************************
MSI (s) (6C:64) [13:34:17:625]: Machine policy value 'DisableUserInstalls'
is 0
MSI (s) (6C:64) [13:34:17:625]: End dialog not enabled
MSI (s) (6C:64) [13:34:17:625]: Original package ==
C:\WINDOWS\Installer\4600a.msi
MSI (s) (6C:64) [13:34:17:625]: Package we're running from ==
C:\WINDOWS\Installer\4600a.msi
MSI (s) (6C:64) [13:34:17:687]: APPCOMPAT: looking for appcompat database
entry with ProductCode '{90110407-6000-11D3-8CFE-0150048383C9}'.
MSI (s) (6C:64) [13:34:17:687]: APPCOMPAT: no matching ProductCode found in
database.
MSI (s) (6C:64) [13:34:17:703]: Opening existing patch
'C:\WINDOWS\Installer\46180.msp'.
MSI (s) (6C:64) [13:34:17:703]: File will have security applied from OpCode.
MSI (s) (6C:64) [13:34:17:750]: Original patch ==
C:\DOCUME~1\Carlos\LOCALS~1\Temp\IXP000.TMP\OUTLFL TR.msp
MSI (s) (6C:64) [13:34:17:750]: Patch we're running from ==
C:\WINDOWS\Installer\3ec391.msp
MSI (s) (6C:64) [13:34:17:750]: SOFTWARE RESTRICTION POLICY: Verifying
patch -- 'C:\DOCUME~1\Carlos\LOCALS~1\Temp\IXP000.TMP\OUTLF LTR.msp' against
software restriction policy
MSI (s) (6C:64) [13:34:17:750]: Note: 1: 2262 2: DigitalSignature
3: -2147287038
MSI (s) (6C:64) [13:34:17:750]: SOFTWARE RESTRICTION POLICY:
C:\DOCUME~1\Carlos\LOCALS~1\Temp\IXP000.TMP\OUTLFL TR.msp is not digitally
signed
MSI (s) (6C:64) [13:34:17:750]: SOFTWARE RESTRICTION POLICY:
C:\DOCUME~1\Carlos\LOCALS~1\Temp\IXP000.TMP\OUTLFL TR.msp is permitted to run
at the 'unrestricted' authorization level.
MSI (s) (6C:64) [13:34:17:750]: SequencePatches starts. Product code:
{90110407-6000-11D3-8CFE-0150048383C9}, Product version: 11.0.5614.0,
Upgrade code: {00110000-6000-11D3-8CFE-0050048383C9}, Product language 1031
MSI (s) (6C:64) [13:34:17:750]: 3.0 patch
{B1916B99-23C0-49FE-A473-95425695655A} of type minor upgrade takes product
{90110407-6000-11D3-8CFE-0150048383C9} to version 11.0.7969.0
MSI (s) (6C:64) [13:34:17:781]: PATCH SEQUENCER ERROR: revision summary info
property is missing from transform 213TTo213U in
C:\DOCUME~1\Carlos\LOCALS~1\Temp\IXP000.TMP\OUTLFL TR.msp patch
MSI (s) (6C:64) [13:34:17:781]: SequencePatches returns error 1648.
MSI (s) (6C:64) [13:34:17:781]: Product: Microsoft Office Professional
Edition 2003 - Update '{48691011-BF12-407D-9A7E-8772485CDAA2}' could not be
installed. Error code 1648. Additional information is available in the log
file C:\DOCUME~1\Carlos\LOCALS~1\Temp\OHotfix\OHotfix(0 0001)_Msi.log.

MSI (s) (6C:64) [13:34:17:781]: Note: 1: 1708
MSI (s) (6C:64) [13:34:17:781]: Note: 1: 2729
MSI (s) (6C:64) [13:34:17:781]: Note: 1: 2729
MSI (s) (6C:64) [13:34:17:781]: Produkt: Microsoft Office Professional
Edition 2003 -- Die Installation ist fehlgeschlagen.

MSI (s) (6C:64) [13:34:17:796]: Attempting to delete file
C:\WINDOWS\Installer\3ec391.msp
MSI (s) (6C:64) [13:34:17:796]: MainEngineThread is returning 1648
No valid sequence could be found for the set of patches.
C:\WINDOWS\Installer\4600a.msi
MSI (c) (68:8C) [13:34:17:796]: Decrementing counter to disable shutdown. If
counter = 0, shutdown will be denied. Counter after decrement: -1
MSI (c) (68:8C) [13:34:17:796]: MainEngineThread is returning 1648
=== Verbose logging stopped: 12.10.2005 13:34:17 ===


Carlos Bastos
Sidoun GmbH.