guys, i think this thread should be deleted, remember no piracy/warez/cracks thingy ?
anyway, your copy of windows is an original one u just need to activaqte it over the internet, the keys wont work because you will haveto be online to do this and the serial number will be verified upon activation,
there's a tool, that bypasses the activation and cancels it, so you will be pure Microsoft ripped off personnel
you can find the tool online, it is called : wpa_kill.exe thers no need to change the serial number using rockxp or keyfinder unless you got caught using a pirated one. so basicly all you need to do is either BUY you Geniun copy of microsoft windows xp sp3, or use this tool.