this is how i did it guys work's fine for me
i had menu 4.0e HBC install and no cISO installed
1. run WMISO35 to install iso35 (you need a copy of iso35 wad on sd card)
2. run CMDVDX34 and downgrade iso35
3. run WMISO35 to install ciso_fix.wad (you need a copy of ciso_fix.wad on sd card
4...