Thanks to our very own bangbang023 :)
The Installation package of the final version of Service Pack 2 has just been released to the beta testers on the Windows Beta Website and is available in for download now. The file name is WindowsXP-KB835935-SP2-ENU.exe. The self extracting compressed file weighs at 266.01 MB.
UPDATE: Apparently, pirated Keys appear to be working.