1. Run your internet setup in your wii options, plug in the ethernet cable, and choose a online capable game
2. Most games will pair you up with randoms around the world to play against, they also offer the choice to play with your friends only, by adding them as a friend with a code
3. You add the friend code IN GAME, Each game gives u a unique friend code, which is different than the friend code in the wii messaging menu. Example, if u want to play mario kart with your friend, you need his mario kart friends code,which mario kart will give you IN GAME, different game, different code, if you want to exchange messages to your friend that show up on your wii message board, you need your friends console friend code which is found by going to the wii message board, and to address book.
5. Yep with a broadband adapter
6. what poll is that?