Taken from Joystiq..
A New Zealand Wii owner gets creative when faced with his country's lack of Virtual Console titles. He changes his console's PAL region to the UK. Voilą!
Unfortunately, this "trick" -- popularized by Xbox 360 users (before Microsoft wised up) -- doesn't work with Japanese or North American Wiis. Japanese owners can't change their Wiis' region, and North Americans don't have access to the Japanese or UK region options.