you need to take apart the gc controller and plug it into port 4 of the wii.
power up the wii. and turn it on. soon as the led goes green hold the 4 dpad buttons
from the GC pad. and you should get a screen with a number bottom left.
I'm on 3.2e still so can load homebrew chan using homebrew auto loader prog.
which I got from this page.
http://*******.net/index.php?showtopic=123708
it should load it as long as got the HB chan already installed.
EDIT. sorry it wilnt let me paste the full link. to find the file google for
"Brick Fixing Disc's" Viewing Profile
with the " " marks. and it should be first found.