There's a site called Letterbomb. Go on it and there should be boxes to type stuff in. Type in your MAC address, which is found in your Wii system settings, and choose your Wii system version (if it's not listed then update your Wii) and proceed to click Cut Red/Blue wire (shouldn't matter which you click) then you should extract the downloaded .zip file to the root of an SD card. When finished, place SD card in your Wii and go to your wii's messages. There should be mail with a bomb attached. Click it and it should boot up a screen. Wait a bit and click the option to install Homebrew channel. Once it's finished congrats! Homebrew is now on your Wii. Choose the Project M app (If you downloaded it) with Brawl in your Wii and play Project M.