HALO 2 Won't load from HD, Dirty Disc

I just got my hands on HALO 2 and after backing up all of the files to the harddrive and running the game i get an error saying something to the effect that the game couldn't load and that the disk may be dirty. I think it has something to do with the dashupdate file that comes with halo 2. I know i have my script right in the evox ini file. I have 23 other xbox games that work fine. I also tried to run the game straight from the disk and i get an error saying invalid disk. THIS DISK IS AN ORIGINAL. Something tells me that it may be that I need to update my bios or Evox. Is anyone else having this issue. My xbox is a ver1.1 and i have the xcuter 2.2 lite.