“I was also stupid in my post, my edit system is on a G4, not a G5 I think I just have G5 on the brain because I just bought my powerbook pro”
there is no such computer as a powerbook pro if you are referring to a macbook pro. If you are referring to a macbook pro I don’t see why you should have G5 on your mind because nether your new system or your old system have a G5 in them. A macbook pro has a Intel Processor in it.
Before you do an erase and install on your G4 do a archive and install this will not erase your files but just reinstalls the OS.
If you want 10.4 on your G4 then purchase a copy of it and install it from that. Like the last post said the discs that came with the macbook pro are specific to the Intel proceeder and other hardware of the macbook pro.