If you still can't find it after those other two
suggestions, there is a file out there that is a CD-KEY
generator. Use Kazaa Lite (no ads), and do searches
on "Windows XP CD-Key", or other variations thereof. The
correct file is one that "Searches" your computer for the
cd-key. What it does is randomly computes cd-keys until
a valid one is generated, and then stops. You can set it
to do 100 searches for 1 cd key, and it generates 100
times, and generally, it takes about 10 minutes for it to
actually generate a cd-key that's valid, because the
first several won't be valid... that's just because of
the chances! It creates a log file so you can view the
key later. And it REALLY WORKS. I used it myself, and I
didn't know how to use it at first, but once I read the
readme file, I had a valid cd-key within 15 minutes after
2 days of searching (lol I came across this same program
at least a dozen times and going "grr.. not this one
again... I DON'T HAVE ANY CD-KEYS ON MY COMPUTER!" hahaha
little did I know what it actually does...)
-Tim
P.S. I can send it to you through e-mail if you wish...