HaloMods "Classic" Read-only Archive

How do i replace a map in the halo director? I downloaded a 23meg bloogultch.map and tried ftping it into my maps directory but when i try to play it i get a durty dirc error. I read some where that i have to patch the default.xbe but i cant find that patch anywhere. So if anyone could help me out that be great.

you need to go here http://halomaps.com/forums/viewtopic.php?t=268

Thanks for the patch, that preventing me from getting a dirty disc error but the map remains unchanged. I downloaded the AI map for blood gultch and nothing is there, just the original bloodgultch. I also tried clearing the cache files, but that brings back the dirty disc error.