I don't know if i messed up or not here. I just put my new rig together and am loading up Windows XP home, well i can't find the product key! I bought the OEM version from Newegg and i can't seem to locate the product key anywhere...it's not in the package or on the booklet, what can i do? I have another windows xp home disc that is for my gateway computer, will that product key work? anyone please i'm so desperate here, i just want to play with my new comp. thanks.