HaloMods "Classic" Read-only Archive

I have Flash FXP, and when I download a ppf to my xbox like be a hunter on outskirts, I start the disk from the modded dash that says evoluton x. I go to the level and nothings different. Even when I add zenton or Desention. Why? Do I need to copy my unmodded map to my desktop and delete the old origanole map on the xbox? To replace it with the new map?

If anyone could help then thanks.

I found it out. I have a program called ppf-o-matic, when I try to resign the maps but I don't know how. My problem is is that I can't get the maps to be modded.