Don't feel bad, since a lot of people think it is a good one. The "start fresh" idea applies to most projects in life, but not at this. Completly rehacking might fix your problem (but there is probably an easier way), but you don't have to revirginize your Wii to do so. Any old hacks will be overwritten.
I have a few questions. Can you post a syscheck? Does the original disc work? Did you update when you first ran the game?