This version of Hellmaker should work without problems on most PowerPC based Macs. Also, if you previously turned off the MODERN MEMORY MANAGER in order to run Hellmaker, this should not be necessary now.
If you are still having problems, first try restarting your Mac with extensions off and try again. If this doesn't help, please contact the author with a bug report by e-mailing to <drd@kagi.com>.