Software Distribution 2.0

Hey all, I recently installed the software distribution 2.0 pack that was downloaded to my computer as part of an update. After the installation my computer has started to act up in all sort of weird ways. First off my Aim program will not open along with the Window Washer Program, i click on it and it does nothing. Also many of the icons on the service tray are absent. I have tried system restore to try and go back to a time before the installation but the computer can't restore it. Anyone have any suggestions????