Redhat 6.0 on a Jensen (no really, please help)

[David Rysdam <drysdam yahoo com>]

I am having significant problems installing RedHat 6.0
on a Jensen I've got sitting here.  

I've found quite a few different sets of instructions,
each with slightly different requirements.  The
farthest I've ever gotten is getting the kernel
booted, but then it doesn't like the ramdisk I give it
("unable to mount root fs").  

I'm current following these instructions:
http://www.khubla.com/jensen.html

Why those?  Because they supply some (supposedly)
recent kernel/ramdisk files.  However, even these do
not work.  After I copy the kernel to the HD and try
to boot with it I get "?02 KSP INVAL".

Is this firmware related?  I can't figure out how to
tell what firmware it's running now AND when I try to
install 1.7 (blowing away the unknown existing ver) I
get a checksum error.

Help!!

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