You didn't share the "error message" in a way I could pick up what it was. I use that to look in http://support.microsoft.com for clues.
Bob
I own an MS Office 2003, using an MS Windows XP with no SP. Everytime I click the "clip-art" button, an error windows pops-up saying that the interface is not supported. I reinstalled MS Office 2003, and it stayed the same. I have it installed in a drive different from where I installed the OS. The same incident happens when I open Clip Organizer. Does anybody know how to fix this error?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic