Photoshop :: Upgraded To CS4, But Can't Uninstall CS3

I installed CS4, and then successfully uninstalled CS3 (both versions as full Creative Suites).  I realized, though, that I hadn't saved the actions I had created in PS CS3, so I reinstalled PS CS3 (and found the PS CS3 Actions Palette.psp file, which had my custom actions, from a backup I had made). I exported the custom actions to .atn files, and then imported them into CS4.  So far, so good.  But..

  Now I can't uninstall CS3!  It doesn't show up in my "Add or Remove Programs" dialog (either as the full Creative Suite, or as the individual component programs).  I suppose I might be able to solve this by completely uninstalling CS4, which would leave only PS CS3 (and a few other of the CS3 programs, which were also reinstalled) -- and then maybe it would show up in Add or Remove Programs.

  (And then I could -- I hope -- uninstall CS3, and reinstall CS4.)  But if someone has a simpler solution, I'd greatly appreciate hearing it!   To summarize the key actions, here's what I did:- Already had Creative Suite CS3 installed- Installed Creative Suite CS4- Uninstalled Creative Suite CS3- Reinstalled PS CS3 and a couple other CS3 programs- Exported some files I needed from CS3, and imported them into CS4- Now I can't uninstall CS3.