I had MOHAA too. I installed it, than i copied the crack over. But before, i eber save the Orginal EXE of the Game, because some Patch Programms need the Orginal EXE. When the patch was there, i copied the Orginal EXE back, patched the game (saved the new Orginal EXE)and copied the new Crack on it. MY MOHAA works and works and works.......
I hope i could help you with this Message!