Oops? v2.0

You know you're not going to solve your problem quickly when you Google the error message you got while you were trying to install iTunes 9.0 and found your LiveJournal post from 09/09/2008 that details the exact same error.

I'm still trying to fix it but haven't figured out how. Meanwhile, the Windows Installer Clean Up Setup app seems to have hung. Grrrr.