Yea i did, or else i couldn't get wiiflow to work at all, do you have a link for what guide you used? I did how ever use the updated one that used no wads
http://gbatemp.net/threads/full-vwii-softmod.339899/
I also installed cIOS236.
not sure if that makes a difference or not
i dont use the USB loader they recommend here, but wiiflow is working for me.
still prefer loader gx