if you really googled all freakin day you would have found this at the most amazingly random place in the world
theres 2 ways
from the homebrew channel website go figure...
.ISO (Selfbooting disc image for people with drivechips)
!! Only works on systemmenu <= 3.2 and requires a modchip !!
theres also not only 1, but 3 topics about how the hack AC:CF from the codes, how to load them, all the things needed, if you cant search for it, i refuse to help you, or post it for you