Whenever possible, clicking on the links on this webpage where you're told where to download the latest Wii version of the emulator will give you a free download of the latest version.
Alternatives of Wii online services
Emulators
Fun fact: I'm trying to get MESSoXtras, a multi-system emulator for original Xbox, ported to Wii. To find the thread where I first publicised that fact, go to http://forum.wii-homebrew.com/index.php/Thread/57863-MessoXtras/#post687346.