iBoot 2.6

I am trying to start from the beginning since I continue to have issues trying to get all my devices working. I figured I should use the latest availble stuff to restore my build, so naturally I used iBoot 2.6. Now every time I try to boot from iBoot to the SL install disc it gives me the "you must shut down your computer" message. I tried the -x PCIRootUID=1 as per the guide.... Same results? Any idea what to do? I am at a loss. Also, is there anywhere I should go to learn more about DSDTs? I attempted to use the one for my build after I had gotten some components working and I get the falling curtain error? Thanks