I want to be able to use Savegame Manager MOD to copy my Super Smash Bros. Brawl and Animal Crossing save files to my SD. I've downloaded it, put it in my SD and went onto it via HBC. It asks me about selecting a an IOS... (e.g. 35, 249,etc.). I don't think I have any of these installed. Can someone please tell me what to do from here and install the IOS if required?