Lol, I went to eat dinner. Anyway, you will eventually be doing a complete resoftmod, but first we need to install the new System Menu. Put the 4.1E System Menu wad you downloaded (Enter ModMii Classic Mode, type "I Agree", Enter, "1", Enter, "4.1E", Enter, "D", Enter, and you should be able to figure it out from there) in SD:\wad\.
Next load MMM on your Wii, go to the last option on the menu, and change the IOS to 236. Enter Wad Manager (back at the main menu) and install the 4.1E wad. Tell me if it was a success. DO NOT TURN OFF YOUR WII.