uninstall teamsite failed from my windows?

System

hi,
I installed ts6.1 and ts6.1 sp2 on win2000 server, then I want to uninstall teamsite, first I uninstall ts6.1 sp2, but uninstall is not clear, the item still is in add/remove program, if I continue to uninstall teamsite6.1 , it always return error: need to uninstall ts6.1 sp2 first.
any good idea?

thanks!