Instructions
Unplug the SD card you used to install the initial Homebrew Channel on your Wii.
Plug the SD card into your computer, then launch a file browser and navigate to the directory where you saved the initial Homebrew Channel data.
Open an additional file browser window and navigate to the SD card.
Create a folder in the root directory of the SD card called "apps," then copy the "homebrew_browser" folder from the Hombrew Channel data folder on your machine to inside the "apps" folder on the SD card.
Unplug the SD card from your computer, flip the write lock switch to "off" if the switch is turned "on," then insert the SD card back into your Wii.