I asked a question Do you need to hack the wii inorder to put the torrents from to an external hard drive?and i guy answered quot;yes, you need to install homebrew and usb loaderquot;...What is a usb loader?
USBLoader is a homebrew app which requires IOS249 stub installed. If you have 4.3 menu, it wont work. USBLoader loads games from a usb flash drive or a usb hard drive though the usb slot in the back of the wii.