Flarestorm 2 sound

[theDCexpress]

Ok, so I have Flarestorm 2 (Playstation emulator) up and running on my PowerPC Mac. I've been Playing Tomba! for a bit now but I don't have any sound.

I have these sound-related plug-ins enabled:
carbonsoundbridge.dylib
gpu.dylib
nullspu.dylib
spu.dylib

Is there anything else I need to enable or disable to get some sound?

Thanks!