Amazing. After digging through hundreds of web pages trying to figure out where I could get the software to boot my X terminal without paying hundreds of dollars to NCD (well probably, I didn't actually ask them), I finally found the image I needed on an NFS from a boot server somewhere in Australia, which I stumbled on by chance while reading a tech support document I found during a search. Now my X Terminal works. Thanks guys. :)
The terminal is a little slow, but I'm not complaining. I'll take an extra head at 1024x768 anyday. :)