This isn't going to help, but I just looked at the GA code, and I don't see any way it could have done any harm on uninstall. It doesn't touch any existing files or System Settings.
I kind of have a rule about not upgrading broken sites (which I sometimes break) unless the new version is known to fix the bug I have. I think it's best to try what I suggested above first, but it's up to you.
If you still have the .zip file around from the install, you can pull those directories out of it. Just be careful not to overwrite the files I mentioned. If not, and you can't find a copy, I have a copy of both 2.0.3 Traditional and 2.0.3 Advanced that I can send you if you PM me your email address. Hopefully, you know which one you want.