To install to a second pc, select registration by phone. Talk to the customer service rep and tell them you sold your first pc, fdisked/formatted the drive and wish to install you paid for copy of XP to the new computer. They will issue you a new key. MS is not really concerned about this type of piracy. It is stealing. You can choose to steal from MS or buy a second copy.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS