I have a Windows xp disc that Ive had forever its windows xp professional. I dont know if this will help but the product number is: X10-52219
How do i know if its 32 bit or 64 bit?
I believe if it was 64 bit it would say it on the disk, 32 bit would not say anything about 32 bit on the disk.
Also, check the disk for a readme file in the root directory. If it is 64 bit it will say "Readme for Microsoft Windows XP Professional x64 Edition" in it.