Hi, I got a Wiikey 1.9G on my wii, with homebrew channel and 3.3E. if I upgrade to 4.0, will all my backups run fine? Oh, and I wanna play MadWorld, do I need to do somethin in order to play it? and what exactly is IOS and cIOS? can anyone explain how exatly this softmod works? and even if I dont have a cheap, I can run backups? explain plz to a newb.