LawlessPPC darwin boot problem

[PenguinMafia]

Hey, so I finally got LawlessPPC 10.5.4 to install on my pc but now the problem is that after installation it won't boot up. It seems that there is something wrong with the Darwin boot loader that won't let me load from my hard drive. I want to know is there a way for me to boot into the the Mac desktop from the dvd so I can install chameleon boot loader which should fix the problem.