2. show your mom how to use Neogamma to boot retail discs, or
3. downlaod the official MIOS with NUS downloader and pack it into a wad and install it with wad manager. This will over write the cmios.
I see that you thought installing priiloader is an option, which it is. Some here would believe you didn't follow a Wiihacks guide because you didn't install priiloader. If you are going to be playing retail Wii discs then you should install priiloader and block updates, if you burn Wii backup discs then you should install priiloader and block updates. I don't have priiloader installed (yet) either, but I never use a disc to play a game. Don't say you were not warned about disc updates.