Urgent, help, please, the mystery of the lost space

So. I messed up. I was well on my way to partitioning my mac to get windows on it so I can play certain video games with my comrades, and i blotched it. I had it set to give me a 120 GB partition for Windows, but I realized I missed deleting something, so maybe one minute into the partition I quit the Boot Camp assistant *Smack on back of head*. So now, I look at my space and I have 11 GB available.. I just cleared 123 GB. So I go to disk utility to try and repair it and it says I need to start with my start up disk. Here is the catch. I have no idea where my Snow Leopard disk is. I tried starting Boot camp assistant again but it says I need at least 10 free GB which means at least something like 20 I believe to leave room for the Mac. The resources I have is an old boot disk for Mac OSX. I need a solution. I'm losing my mind and I'm frightened beyond belief. Haha, not really, but I don't want to resort to tearing apart my house to find the disk or spending more money on a new one.

Any one, please. I need your help Obi Wan.

Oh sweet jesus, that old boot disk fixed it. Thanks for reading if you did. Yea Thank you Disk utility!