Instructions
Be aware that FreeLoader is not a licensed program and if it causes any problems with the Wii, Nintendo does not support your troubles.
Use your GameCube version of FreeLoader if you already have one purchased. The Wii has the capabilities to read GameCube games since they are both Nintendo consoles.
Buy Action Replay for the GameCube, if you don't already have a version of FreeLoader. Action Replay has cheats and it includes FreeLoader, giving you 2 products for the price of 1. Action Replay gives you extra help and lives so that you can further into your games.
Load the FreeLoader in your Wii and follow the on-screen prompts. Then load your out-of-region game to the Wii. You may have to guess directions and prompts, as they will be in different languages. Most can be figured out with the animation on the screen.
Use caution when updating your firmware on your older Nintendo Wii. There are certain firmware updates (including 3.0) that disable FreeLoader from working. It is said to be a coincidence, but since FreeLoader is not a officially licensed product it does not have to make a work-around or fix.