There is a lot of IOS's on your Wii, just look for 38, 53, 55.
updates??? I installed those IOS's seven months ago and never updated them, all my games work fine.Oh and where is the best place to find all the updates for those isos
Download this package from dogeggs, CLICK HERE. That's from his softmod tutorial. In that package you should find the wad files for 38, 53, 55. (probably find them in a wad folder). If you did dogeggs tutorial then you should all ready have them IOS's installed.