I've lost my Mac OSX Snow Leopard CD.
Where can I find BootCamp drivers and the latest driver-updates?
What about the official Apple site?
After losing my own disk, I was completely unable to find a simple download from anywhere on the internet.
If you don't have a friend from whom you can borrow a copy of the disk, then under the assumption that you have bought the software or are otherwise legally licensed to possess a copy, I'd suggest you look into "alternate" methods of obtaining a copy or image of the disk.
(On a side note, I'm not sure if this kind answer is allowed on SuperUser, as I could find nothing in the FAQ or the meta site. I'm not by any means suggesting that you use any piece of software illegally, regardless of the perceived morality. I figure you'll either stay within the law, or you weren't going to in the first place. If a mod wants to clarify on this, please comment.)