Go to wiibrew.org and download the 3.4 version of the twilight hack and follow the instructions that come with it.
3.4 will delete it after every reboot so use it to install the homebrew channel.
And as far as the fixed thing, i don't think they can fix it on the disc based on how it happens which is why menu 3.4 happened and doesnt allow the earlier version of the hack to work, but they found a bug in that that allows it to run, they just couldnt get around the whole system deleting unauthorized save data upon reboot part.