so why don't you ask over there?
only wiihacks guides are supported on here.
really hard to tell what you did wrong, several options. (including bad game rips/dumps, wron cios, wrong region)
would be good to use a wiihacks guide on top of that (maybe the softmod any wii guide linked below, further questions would go there)
no need to uninstall stuff just install the new.
maybe say hello in the introduction section as well.