XP Media Center Edition 2005 Update for Sony Vaios

I’ve been TRYING like made to find a copy of this update . . . looks as if I missed the band wagon when I was off the net some years back when Sony was selling the update for $9.99 . . . anyway, trying to bring my PCV-RZ45G more up-to-date with some add’l RAM and boards . . . BUT, I need this software to continue with drivers, etc., etc. . . . can someone help?!@?