I have purchased new wii last week. The WII system is 4.1U. In the main WII menu i have MII Channel, WII Shop Channel, Photo Channel, Neo Gamma R6(IOS249 - Rev14), SoftChipR99M and HomeBrew 1.0.1 . I don't know about the cracks installed in my WII. Please explain what all these and tell me any updates available for this. Procedure to update any.