Installation guides:

Operating instructions
No special operating instructions required. Operating instruction is the same as a normal Wii.

Disable Mode

Warning about upgrading the Wii
Please be careful when a game ask you to upgrade firmware. This is because if the game is an import, the import upgrade firmware can render your machine unusable. The following is a link to a website that helps you to reduce the chance of rendering your machine unusable. It contains a list of what import games can be used for upgrade and also a list of what import games might work on your mahcine. However, there are sometimes mistakes on that list. So be careful with firmware upgrades.

Wii compatibility list