HaloMods "Classic" Read-only Archive

I tried to use the modded Turf map, London, and it says I failed to load the map. I followed the tutorial telling you how to apply the maps.
I didn't put the .PPF on my Xbox, i put the map file. I patched the .PPF, and used the nectocryptonic or whatever it is called. I have a backup of the Turf map, incase I need to startover.
Can someone tell me what I did wrong? I just want to play the map with my sister

Did you resign the map? Thats usually one of the main problems.

Are you playing it from your TDATA folder? If you are, then I know what your problem is, but I won't tell you how to fix it, because the information could be used to cheat.

Resign your map using the same signature with new maps.