You're gonna want to download a newer distro, probably Fedora Core 4 as it is RHEL4, but free version from Red Hat, just not commmercial support.
RH8 was out before firewire was even included in PCs. So, you're gonna need atleast a 2.4.xx kernel or a 2.6.xx would be better. No matter what, you're gonna need a newer distro.