Any uptodate cd writing software can copy the disc, just do a direct cd copy.
The problem doing this is you wont have a unique, valid, unused cd key that microsoft have activated. Without this WPA will not work. This leaves 2 solutions, ether ingnore this and the repeated reminders that XP will give, and have a fresh install every 30 days, Or to go and purches a Personal copy from a store or online, and have no need for the copy.
Hope this sets you on the correct path.