If you have read through my posts and links in the “Simple 2D Lighting” thread, I don’t have a lot more to say. I did put up a working example of my lighting setup in the Rendercam thread, here. It’s not perfect and I haven’t tested it in a while, but maybe it will help.
I also did a little demo of the bouncing solitaire cards effect. It’s not lighting, but maybe a simpler intro to render targets for you? Link here.