You could try voodoops2 from voodooprojects.
You would need to uninstal your current ps2 drivers , the instructions they give are easy to follow.
Also you may want to try a smbios patch, patch dsdt, and maybe usb mount fix,
The other thing is if you look in the Insanelymac forum go to the OSX86wiki and look up your components see what you need to install or uninstall, it takes some reading but it does help

Raz