Hot damn. Good stuff.

@gnome73 basically it's like a little GPIO board that plugs into a USB port on the Pi. Mapping isn't a problem, it took me a long time to work out how to do it, but thank you for your response. I'll give it a go once it's all up and running. Much appreciated guys.

Took a month, but I'm finally done. Ok, who am I kidding. RetroPie is never done. Always more to do and to tweak.

See OP for updated pics.

@edmaul69 It is the default retroarch.cfg

Problem solved. Turtorial is great.