how to get online?

[m4ck]

I wanted to create a Mii to use in some games, so I thought I would need to connect to some kind of a Wii/Mii server. After downloading Dolphin 3286 I found something like "Start NetPlay". I am not even sure if it is what I need, but Dolphin keeps crashing every time I click it.
Could any of you help me with creating a Mii or connecting to Web(like starting online playing in Mario Kart Wii)?

[cmccmc]

Well to create a mii just rip any wii game of of the disc and look for the mii channel in it or dump your wii's nand. And netplay is very buggy

[m4ck]

Well, I think I would be able to do something with that if I was able to open a Wii menu, but i don't know how to do it... and I am pretty sure it is possible in this version of Dolphin - at least my friend says so.