live updated my msxboxdash now what?

[iwillrace]

I was playing full spectrum warrior and decided to see if i could get it to play co-op on 2 xboxes instead of on xbox live. Which I cant get any way the xbox took a wrong turn and tried to update for live and I am pretty sure it wrote over my msxboxdash file . Now I cant play burned games so I tried to use my good old evox boot disk and it keeps telling me that it is dirty or damaged. Can someone tell me would the update have overwritten my chips bios or should i try somthing else? I have made 3 evox boot disks all different versions and still cannot get into the files with flash fxp because I cannot set up the ip please help me figure out what is wrong!!

Thanks,
Greg