Here's some more information that might help. The steps so far that I have
taken have been:
1) Do a system restore back to a point where it worked
2) Clean boot without letting the update install
3) Reset security templates back to out-of-box
3) Uninstall/Reinstall of Office
4) Testing on other user accounts

Everything works except on my 'home' account. I don't understand it. I
encountered no registry errors or anything. All the Office programs will not
work. Any help anyone could provide would be greatly appreciated.

Microsoft Office 2003 Student Teacher Edition
Windows XP SP2
Webroot Spy Sweeper (V. 5)
Dell Inspiron 9300