Service Pack 1 for Office 2008 was just released recently. However, many people (including me) have experienced the infinite looping setup assistant problem. Basically, you can’t get any of the Office Apps working. If you try launching any of the Office apps, it would bug you with the Setup Assistant over and over again.
So here’s how to fix it:
Make sure you have your CD Key ready.
Navigate to ~/Library/Preferences/Microsoft/Office 2008 (you can use the Finder’s Go => Go To Folder… feature, just cut and paste this into the box)
Delete Microsoft Office 2008 Settings.plist
then Navigate to /Applications/Microsoft Office 2008/Office/
You will be asked for the CD Key the next time you launch any of the Office apps. But that’s about it, it should fix the “Setup assistant loop” problem. ;)
P/S: Please don’t ask for CD Keys from me, your requests will not be entertained.