Now that I remember what I'm going a little more this one ended up a little easier.
I present to you the
Devolution Plugin r169
http://www.mediafire.com/?a6p41tp5jjqm835
This one doesn't need any prep. Obviously you can edit the INI file if you want it somewhere else for ISO files but the included one looks in the games folder
just like the sample loader just that it can do sub-folders, too.
You will probably have all the ones in sub folders named "game.iso" but the normal WiiFlow way of loading
actually recognizes it no matter what the name is so you can change that. The best part is that this way Devolution actually returns to WiiFlow in a GameCube coverflow instead of some other random plugin like before.