Things You'll Need
Instructions
Download the WAD Manager program. (See References.)
Insert the Wii's SD card into your computer.
Double-click the downloaded WAD Manager file to unzip it and copy and paste all files to the root folder of the SD card.
Remove the SD card from the computer and insert it into the Nintendo Wii.
Turn on the Nintendo Wii and navigate to the HomeBrew Channel.
Press the "A" button when prompted to install the WAD Manager and follow the onscreen prompts to complete the installation.