1. You're not going to get any help here. It's against the rules, even if you do own the game, because it's illegal to download, the only legal copy is one you backed up yourself.
2. Why should we reward laziness? I had no trouble finding exactly what you're looking for on a number of fairly well known pro-piracy websites when I searched, JUST NOW. Some of them went so far as to state things like "clean w/ no mods or cracks" and "Not ultimate edition", so there's a good chance that they're accurate disc images.
In other words, this thread fails, as did your last one. My official stance is "buy a replacement install disc on eBay, that's what I had to do when my install disc broke a year and a half ago", my unofficial stance is "If you're gonna pirate, AT LEAST have the sense to be discreet about it, and the courtesy not to ask us to do the oh-so-difficult search engine work."
For the record, you can currently buy-it-now a complete game for
$45USD with free shipping, and probably much cheaper if you're willing to deal with the hassle of a proper auction. Unfortunately, there are not currently any single discs of the PC version (or install disc) listed at the moment, but they do pop up from time to time.
