Patch package could not be opened

I can not uninstall, update, or repair office 2000 sr-1. I keep getting a message-

"The patch package could not be opened. varify that the patch package exists and that you can access it, or contact the application vendor to varify that this is a valid windows installer patch package."

Any ideas anybody?

 

See link below

"Note that you cannot remove only the SR-1/SR-1a update. You must first remove Office, and then reinstall Office without the SR-1/SR-1a update."

http://support.microsoft.com/kb/302751