firewire at apple cube

Hello! I have installed SuSe Linux 7.3 (Kernel Version 2.4.12) and would like to use an externel HD and my MO-Drive (with FireRex from Firewire to SCSI) over Firewire, but both aren't recognised. How do I have to do it? Is there anywhere an instruction? I'm new using Linux… Greetings Peter