Hi there Thumper i recently dl'd xp sp3 pro and i have the iso ready and it seems to be working great the only issue im having is that i dont have a working serial # for it. If there is anyway you can find one that could even help me out temporarily that would be fantastic. Main reason for all this i caught a nasty virus a couple months back and my pc is still good i just need to get rid of it so..clean slate is what im looking for. please help. moo111