I just posted in a similar thread so I don't want to sound redundant with my answers. To my knowledge there is no way to shrink/expand WBFS partitions without screwing everything up. You may have to dump everything and start over to achieve your goal. I don't have any myself but you can make ISO forwarders for WiiWare/VC so you can view and select it from your loader just like you would with any other game. There is a guide on here for making ISO forwarders if I'm not mistaken.