Questions in regards to Bootcamp and running HeRo on Mac

[youngwayfarer]

Another question came up while reading through an instruction/guide .pdf on how to install a Windows partition on my Mac.
It said I needed my Mac OS X Snow Leopard disk or My Mac OSX install disc.
Thing is, my mom owned this laptop before me and she said she didn't get any sort of disc (Most likely because she got the laptop off craigslist). So is there any way to get Bootcamp and my windows partition fully running without them or is there another way to get them (virtual copy perhaps)?

Edit: I actually just remembered that my friends dad recently got a new Macbook Air. Do you think I could use his installation disc, even if I'm on a Macbook Pro?