Thanks to scoop for sending this in.
If you were wondering how to get rid of the text in the bottom right of the screen, that you get with your legitimatly obtained copies of windows xp SP1, then read on. It seems that by deleting these two registry keys it goes away.
HKLMSOFTWAREMicrosoftSystemCertificatesCACertificatesFEE449EE0E3965A5246F000E87FDE2A065FD89D4
HKLMSOFTWAREMicrosoftSystemCertificatesROOTCertificates2BD63D28D7BCD0E251195AEB519243C13142EBC3
Neat trick, if i dont say so myself.
Download: The batch file to do it for you