|Yes, make the changes and try installing Windows XP.|
If you can't make the changes I mentioned in #1, you must use a slipstreamed XP installation CD of the same version, you have.
E.g.: If you got Windows XP Home Edition, you need a slipstreamed XP Home Edition, so that your serial number will get acepted during the installation.
If you have an OEM editon, you need a XP OEM edition of the same type as yours, but slipsteamed with SP3.
You are expecting our help, we are expecting your response !!!