I was able to set a good yaboot.conf file and now I can boot. The only problem that remains is that I can only boot from Open Firmware.
When the computer boots, I get the screen with my choices (the ones that are on the yaboot.conf: linux, osx, os9, cd and of. If I choose anything other than of (open firmware) the screen goes white and it does nothing after that... I have to reboot the machine the hard way. If I do select of, I can type 'boot ultra2:9,yaboot' and it will boot from there... any ideas? BTW, thank you very much for all the help, and Eric, sorry about resending all the emails on the replies... still getting used to mutt Benja

