I just bought the new macbook pro and I need to transfer files from my old G4 to my pro. I was going to use Migration Assistant but it says I need to connect my two computers with a firewire cable. I already have a 4-pin to 6-pin. The 6-pin fits in my G4, but neither the 6 nor the 4 pin fit in my macbook pro firewire port. Can anyone tell me what I need?