[ Requirements ]
Wii that can Run Homebrew
USB-Loader_v1.zip (or 3rd party port)
cIOS36_rev9-Installer.zip
IOS36-64-v1042.wad*
USB Mass Storage Device**
* = This is for offline installation of the cIOS
** = This could be a keychain or Hard Drive. Note that not all devices are supported.
[ Environment ]
Nintendo Wii v4.0U
v4.0U via Waninkoko's Update
Wabasi Zero (Modchip)
Homebrew Channel v0.9
Windows XP Computer
SanDisk Titanium 8GB USB Keychain
[ Preparation ]
In a nutshell you're going to have to first install the cIOS using an on-line or offline connection then run the USB Loader and have it prepare your USB Device by formatting it. After it's formatted you can start to add you legal backup collection to it.
Unzip/Extract the contents of the two ZIP files into separate folders. Go into each folder and locate the .dol file and rename it to "boot.dol". If you're running an "offline" installation of the cIOS you must place "IOS36-64-v1042.wad" in the "cIOS36_rev9-Installer" folder.
 

Copy both folders onto your SD card and insert it into the Wii. Turn on your Wii and Launch the Homebrew Channel.
 

Locate and launch the cIOS36_rev9-Installer. Press "A" to agree to the Disclaimer.
 

Next select either a "WAD Installation" or "Network Installation". Wait for it to install.
 

Once installed press any key to reset the Nintendo Wii.
[ Usage ]
 

Now, plug in your USB Device and launch the USB-Loader_v1. If your USB Device isn't supported you will get the message in the picture above.
 

If your USB Device is supported you will get a screen prompting you to format the device in the new WBFS format.
 

Next select the partition you wish to format. Press "A" to continue.
 

Once you press "+" you will be prompted again if you wish to install the game.
 

Your game is now installed and ready to play. Just repeat the same steps to add more games. The rest of the GUI should be self explanatory.






Source