your late to the party
Skip waninkoko's loader. Install customIOS 36_R8 (very important you do this first) then update to 4.0 using the official nintendo method (far less likely to brick). Then install the patched ios60 and you can boot custom channels no prob.
Oh, of course make sure HBC is installed on your wii first
get all files and tutorial here
http://wehackwii.pbwiki.com/News+-+System+Menu+v4 BUT skip steps 8-10!