Roy, I can point you in many different directions, But if you want the one where you get all the latest settings, allowing you to play the most recent games, then I suggest you go online, there is no big mystery about "online", it doesn't make it any harder or more risky.
In fact, it probably makes it easier. As Dan said, it is the network install that needs the connection, the good thing about this is that you are assured of getting the latest editions.
Shout back when you have the Wii on site roy. 👍