ok, here goes

root (hd0,4) gives "Filesystem type unknown, partition type 0x82" (I assume that is a zero, not the letter o)

kernel /bzImage root=/dev/hda4 gives "Error 17: Cannot mount selected partition"

Runnint the vmlinu* variations gives me the same thing (I assume I should be running them with the / in front of vm. leaving the / out gives another error about filename not being an absolute pathname or blocklist)