My Wii is a 4.3 and I downloaded the Modmii program unto a USB memory stick as I don't have a SD card reader. I am really new to all this (still trying to figure how how to burn dvd's) LOL . I am really unsure of what to do and really don't want to mess up my Wii. If it does mess up, is there a way to undo the mess? LOL Thank you, Sondra ps. I do have a internet on the Wii if that's makes a difference?