Note MeXen ->
I have a very old (first release, 2 white and black) Wii PAL console, same result like Jilou. I am use Wii PAL plus PAL BIOS and force NTSC, working.
The only differences I have a green bottem line, the aspect ratio is more on top, since PAL. Using HDMI tool for my Wii for NTSC...