For some reason, the onboard LAN was not detected properly. If I load up System Profiler and click "Network," I see en0 and it's there. But other network config apps won't see it, they just see fw0. Unfortunately I don't know the chip of the NIC.. the machine is a Shuttle SK22G2B.
This is the last thing I need to fix to get a totally working install. Any help would be great!