The following steps can be used to connect the Wii to an HDMI port, according to Altered Gamer.
Hook up the end of the Wii's component cable with five jacks to the AV port on the Wii. Connect the end with three jacks to the HDMI converter.
Hook up a HDMI cable between the HDMI converter and the TV.
Turn on the convertor, TV and Wii.