Unable to install Office 2007 SP1 or uninstall Office 2007

I downloaded the Office 2007 SP1 and the installation fails during update detection and indicates that it might be due to a corrupted installation database.
Question 1 - How do you repair an installation database?

I then tried to just reinstall Office over the existing app. Error Message: Setup did not complete successfully. Sorry for the invonvenience. An error occured during the installation and setup was unable to complete. Tell Microsoft about this problem.

I then tried to remove Office 2007 and reinstall using add remove programs. It got about 1/2 the way done on the progress bar and then came back with "Microsoft Office Enterprise 2007 uninstall did not complete successfully.

Can't go back and can't go forward.

Any suggestions?????

Here is what the error log  from the attempt to install over the existing installed app contained:

PERF: TickCount=74000421 Name=OBootStrapper::Run Description=Begin function
Operating System version: 5.1.2600 Service Pack 2. Platform ID: 2
Running on a 32-bit operating system.
Command line: "Z:\setup.exe"
No command line arguments given
Verify file signature in "Z:\setup.exe"
Verify file signature in "Z:\Enterpriser.WW\OSETUP.DLL"
Using setup controller dll at [Z:\Enterpriser.WW\OSETUP.DLL].
PERF: TickCount=74014437 Name=OBootStrapper::Run Description=Calling RunSetup
Opening log file C:\DOCUME~1\STEVEU~1\LOCALS~1\Temp\SetupExe(20071219183844348).log.
=========================================================================
PERF: TickCount=74014437 Name=RunSetup Description=Begin function
Catalyst execution began: 12/19/2007 18:38:44.
Setupexe Resiliency Mode is set to [PerformIfApplicable]; thus Resiliency is [disabled] for the [InstallExecutionMode]
Searching for updated versions of resource files under the 'updates' folder [Z:\updates].
Found [0] resource files under the update folder.
Searching for default versions of resource files under the folder [Z:].
Resource File Manager : Found (CultureTag=en-US) resource file at [Z:\Office.en-us\OSETUPUI.DLL].
Found [1] resource files under the default folder.
Resource File Manager : Current user's LCID is [1033].
Resource File Manager : Selecting resource file (File=Z:\Office.en-us\OSETUPUI.DLL) for CultureTag [en-US].
Running in [InstallExecutionMode]. Run from TEMP folder at [C:\DOCUME~1\STEVEU~1\LOCALS~1\Temp\Setup00000348].
Loaded resource file [C:\DOCUME~1\STEVEU~1\LOCALS~1\Temp\Setup00000348\OSETUPUI.DLL] (CultureTag=en-US).
Loaded Dll : Z:\Enterpriser.WW\OSETUP.DLL.
Catalyst version is : 12.0.4518.1014
JobExecutionMode is InstallExecutionMode.
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0117-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{91120000-0030-0000-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0016-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0114-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0044-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0115-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0116-0409-1000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-00A1-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-001A-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0018-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-002C-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0019-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0010-0409-0000-0000000FF1CE}"
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-001B-0409-0000-0000000FF1CE}"
Product: ENTERPRISER
  AddOnGroup Culture: en-us
    AddOnId: ONENOTE.EN-US
    AddOnId: OFFICE.EN-US
    AddOnId: ACCESS.EN-US
    AddOnId: WORD.EN-US
    AddOnId: PUBLISHER.EN-US
    AddOnId: PROOFING.EN-US
    AddOnId: INFOPATH.EN-US
    AddOnId: GROOVE.EN-US
    AddOnId: ROSEBUD.EN-US
    AddOnId: POWERPOINT.EN-US
    AddOnId: OUTLOOK.EN-US
    AddOnId: EXCEL.EN-US
Loading ARP entry.
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0044-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\InfoPath.en-us\setup.xml over Z:\InfoPath.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-002C-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Proofing.en-us\setup.xml over Z:\Proofing.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0019-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Publisher.en-us\setup.xml over Z:\Publisher.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0117-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Access.en-us\setup.xml over Z:\Access.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{91120000-0030-0000-0000-0000000FF1CE}"
Preferring installed Product setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\ENTERPRISER\setup.xml over Z:\Enterpriser.WW\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0114-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Groove.en-us\setup.xml over Z:\Groove.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0016-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Excel.en-us\setup.xml over Z:\Excel.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-00A1-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\OneNote.en-us\setup.xml over Z:\OneNote.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-001A-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Outlook.en-us\setup.xml over Z:\Outlook.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-001B-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Word.en-us\setup.xml over Z:\Word.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0115-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Office.en-us\setup.xml over Z:\Office.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0018-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\PowerPoint.en-us\setup.xml over Z:\PowerPoint.en-us\setup.xml
LIS: start parsing setup xml
LIS: finished parsing LIS package "{90120000-0010-0409-0000-0000000FF1CE}"
Preferring installed AddOn setup.xml C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Rosebud.en-us\setup.xml over Z:\Rosebud.en-us\setup.xml
Product Deployment Mode: PerMachineManaged
Target Deployment Account Security Identifier:
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Office.en-us\OfficeMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Office.en-us\OfficeMUISet.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Excel.en-us\ExcelMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Outlook.en-us\OutlookMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\PowerPoint.en-us\PowerPointMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Rosebud.en-us\RosebudMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Groove.en-us\..\Groove.en-us\GrooveMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Groove.en-us\GrooveMUISet.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\InfoPath.en-us\InfoPathMUI.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Proofing.en-us\..\Proof.es\Proof.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Proofing.en-us\..\Proof.fr\Proof.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Proofing.en-us\..\Proof.en\Proof.xml
Loading package metadata: C:\Program Files\Common Files\Microsoft Shared\OFFICE12\Office Setup Controller\Proofing.en-us\Proofing.xml


I then tried to uninstall Office via Add Remove Programs>

It starts the uninstalling process and thenStart Free Trial