Office compatibility pack is not working on Office 2003 Windows 2000 SP4

[Buttnuts]

Going on week 3 of daily searches looking for a fix.
We have a machine that we cannot upgrade because of old proprietary
software. W2k Srvr SP4, Office 2k3 SP3.
Installed the Office Compatibility pack and all was well till
recently.
Now we cannot open ANY Office 2k7 files. CFO is freaking no Excel or
Word docs on finance server is not a good thing.
I have uninstalled the compatibility pack and re-installed every
version - original, SP1, SP2 and SP3 updates (from Windows update).
NONE work.
I saw where someone loaded an older version of the MSO.dll but I could
not find that version on any of our machines.
Does ANY one have any way to get this to work?

 

[Tester]

I guess you have installed the latest compatibility pack from this link:

<http://www.microsoft.com/download/en/details.aspx?id=3>

When you save save the Office 2007 file as: "Excel 97-203 Workbook" what
happens when you open it in Office 2003?

Also, check that you have the following Os requirements:

*Supported Operating Systems:* Windows 2000 Service Pack 4, Windows
Server 2003, Windows Vista, Windows Vista Service Pack 1, Windows XP
Service Pack 1, Windows XP Service Pack 2, Windows XP Service Pack 3

Windows 7;Windows Server 2008