Open the Halo Custom Edition folder, and click the "Compatibility Files" button. Then, go into the maps folder and delete the dodgulch map file in there.

Next time, run the compilation and map editing tools as administrator. Windows Vista and above save map files compiled in non-admin mode into a compatibility folder, which is different from the map folder but still readable by Halo Custom Edition.

PS: please post such questions in the Halo CE Technical Discussion board next time :)