When I right click on the main screen the list that pops up doesnt have an option for light so I cant seem to add any light to my map do any of you have any clue about what I could do to fix this?
You should have about 50 entities shown when you right click to bring up the entity list. If you do not, you failed to read the directions for installing MOHRadiant and did not place the entity definitions in the right place. Place the entdefs.pk3 file, that came with MOHRadiant, in MOHAA/main.