I just recently bought a MacBook 2007, core2duo from a coworker for a very low price. He was under the impression that the Hard Drive was faulty. I had a mac disc laying around, but it wouldn't work with this particular computer..Im no an expert with OSX or mac based computers, but i know some. I also have an iMAC...so i was thinking maybe I could somehow create an image disc and install new on the macbook. or firewire or something... But i don't know how to do any of this, i have no idea what OS it has on it, and i know that their are system files on the Hard drive because when i tried to use the mac disc it allowed me to use disk utility and i saw the files.. I didn't see any backup or anything like that.. SO basically i don't know what to do! i need some assistance, the model number is A1181 and is the 13in...so how do i go about getting first a working OS, and then LION...where can i get the disc, can i download one, can i order one? does anyone have one? HELP me out please thanks!