Re-installing .Net Framework 2.0, 3.5 broke it!

Who knew that installing 3.5 will bring me down to my knees. I can't do anything 2.0 anymore since I installed 3.5, it seems it installed SP1 for 2.0 and that broke everything that has to do with 2.0 and check out the icon, found out the icon was different after an hour of research trying to figure out what was wrong with my .NET applications.