Help! Two different PPC distros testedon iBook

Hardware-
500Mhz Dual USB iBook (PowerPC 750e "G3")
384MB RAM
8x DVD-ROM drive

I tested the rather nonspecific "Knoppix for PPC." It boots to the command line, but then when it loads X, it can't load KDEinit.

I also tested the latest version of "Knoppix-MiB" for PPC...
It barely gets past the boot: prompt before the machine just turns itself off suddenly.

I know there's Yellow Dog and Gentoo, but I'd really like to see a Knoppix Live CD working. Maybe Knoppix for Mac isn't read yet?

Any help getting these working is appreciated.