So recently I purchased a new hd for my macbook (250gb). My cd-rom drive has an error on it and will not install mac os x all the way. I have been told to use a firewire and use another mac to install onto my computer. So I am using my room-mates MacBook Pro and his firewire to do this. So I plug both computers into eachother via firewire and I boot up my macbook in target mode. The target mode sign appears on my computer and my new hard drives icon appears on my room-mates desktop. I already formated my new hard drive. I am absolutely clueless on where to go from here. I tried just popping the os x tiger disc into my room-mates macbook pro but instead of installing it onto my macbook it tries to install it onto my roomates macbook pro. How do I go about installing os x onto my macbook?