i cannot replicate that issue on my system (it just worked on mine), so i’m not sure what to do – i wonder if installing IOS202 first (if you haven’t already) would help?? – it’s in the download section of this site: http://wiimc.googlecode.com/files/IOS%20202%20Installer.zip
… if you’re worried about bricking, one precaution you can take is to boot into bootmii and make a NAND backup – (If you have installed bootmii as boot2, go to the last icon in the menu of bootmii and select it. Then, select the icon with the arrow going TO the SD card to make the backup–this can be restored at a later time if need be)
sorry i can’t be of more help