You have to have usbloader already installed (in /apps/usbloader on your SD card). The .wad is installed via WadManager. After that you have a channel that points to the installed usbloader in your Wii menu.hispanico said:P.S.
I see that OLD Channels & Forwarders are not more used and there is a NEW Forwarder (USBLoaderCFG - UCXF - IOS58 v6.wad) but only wad file...and dol ?