Creating a XP SP2 slipstream CD
Copy the Windows XP cd to a folder, like C:\WinXP_CD. Expand the service pack with the /X switch. If you expand it to c:\WinXP_SP, then:
c:\WinXP_SP\i386\update\update.exe /s:C:\WinXP_CD
Now burn the C:\WinXP_CD folder to a bootable CD.
Install from this new CD.