And it's easy to understand too! Ben's was nice but it dosn't show where the pins actually are, or tell where the lightgun pins (blue and purple) went to. Just a few minutes ago I did some testing and I figured it out. It was pretty neat to play Duck Hunt on a big TV and see it on a small LCD at the same time
Anyways here it is, hope it can help somebody.

Sorry for the cruddy image quality, it got compressed a bit too much. But hey, it gets the job done.
Ignore the two short wires on the cartridge pins. That was the wire for disabling the built in games.