Computer emergency Gunny is a Moron!

Alright I admit I am an idiot, upon checking my computer to install a beautiful new Zalman CPU Heatsink, My computer would not turn back on and boot up, All I did was install the case fan, check the CPU (As in pull it out but I put it back in right) and put everything back to normal to come on simvi and ask how to install the heatsink/fan..... Well, my LED light on the front flashed, I unplugged the new fan, and whalla, Worked? NO!!! It said it couldnt boot windows, tried normally, no go, I tried to restore, and got some USB.Sys error with the classical Windows stopped system to prevent damage blah blah blah..... I am at library comp typing this now, I need help, I tried restoring on 3 hard drives, Took everything out to stock, including PSU, and still, Half way through a restore, I get the bloody windows blue screen! I shut the system off in working order, Did the fan somehow fry the MB? In the bios EVERYTHING, is detected the way it should be...... But I cannot get windows to work.. Please PLEASE give me some idea on what the hell I did wrong...... Everything works, just no windows.....! Do I need a new MB and a real Windows copy? A MS-Dos Floppy to run WITH my restore disk? I need some type of help, I dont think I killed it....... But..... it wont run, and restoring it I got it all the way through The setup up process, and it froze..... so something is wrong, and ocassionally my computer just restarts Windows maybe? Maybe somebody here can help me! Cheers, Gunny the Idiot.....