daknetworks.com

If you have the serial code for the software, you remove the files below:
~/Library/Preferences/Microsoft/Office 2008/Microsoft Office 2008 Settings.plist
/Applications/Microsoft Office 2008/Office/OfficePID.plist

If you are using the Mac Migration Assistant and migrate the Apps but not the user, copy the files from the old computer to the new user/computer.
~/Library/Preferences/Microsoft/Office 2008/Microsoft Office 2008 Settings.plist
/Applications/Microsoft Office 2008/Office/OfficePID.plist

That should do it.