So, I'm running leopard on my macbook, but have a powermac G4 with new hard drives. I don't have a monitor, so what I did was boot into target disk mode (held down T) and inserted the tiger cd into my macbook. It saw the drive as an external drive, but said that it couldn't run an operating system (or whatever that error is). I need to install it asap. What are my options, how do I do it?