NO...the serial number you got off the net is probably one of a series that were released by Microsoft that they have blocked access to after SP2 runs. Do a search at google and you can read about it. You need to buy a licensed copy of XP.
Read this story, but here is a snip from it....
According to Nieman, Microsoft has banned two codes that are all over the Net. These particular numbers were internal to Microsoft but got loose. He says these two keys now represent 90 percent of all bogus activations.
http://www.infoworld.com/article/02/...pwinman_1.html
Jeff