please tell me how too add light in a beam not in the whole bagground! [:D][:D][:D][:D][:D][:D]

you cant.

Its possible to imitate light, by placing a yellowish (or whatever color) lightbeam scenary onto the front of the map. But it doesn't really work very well.

You can simulate light better by creating shadows. I usually go in mapmaker and take screenshots, then put them together in photoshop to make a full image of the map. Then I put a new layer over it, colored black, and put green color wherever the lights are. This creates a shadow image which you can put on with low transparency. This doesn't look too good by itself, but if you make different layers of shadow, it starts looking better. If I remember, I'll try to show an image later.