Wild West Guns (WiiWare)

I'm just getting into Dolphin, and wanted to fire up Wild West Guns which was one of our favorite WiiWare games. It runs fine, you can shoot/click through the menus, but once the actual game level starts, it no longer properly registers any shots to the screen. The odd thing is it both plays the gunshot audio and shows a visual gunshot on the screen in the correct location, but the shot is not actually applied to the target you were shooting at, so you can't hit anything and thus can't play the game.

Is there a fix for this? I've searched all over and all I can find is one reference on one of the wikis I think where someone had the same issue back in Dolphin 3.5 or something.

Thanks!