Wiiware, VC and Homebrew Forwarder ISO's - GBAtemp.net
Are you saying using SimpleFSDumper would make home+wii menu work? I've been using a Bootmii dump from the start and have always gotten the black screen.
I also stumbled upon a triiforce mrc v8 on another thread. So, there is a new version out there. Not sure if it's any better as I haven't installed it yet.