That did it!

Got it to work finally, I appreciate both of you for helping me through this heh, for some reason when I put the overlay (the copy of the moon and outside edges) ontop of the background, positioning is rather odd, it appears as they are lined up but there is a visable edge around the overlay picture that I cannot get to blend with the background, I've checked the alignments and they are spot on but can't seem to beat this edge effect with the overlay. Think I'll try to use the rectangle marquee tool with a sligh feathering to see if it defeats it. Thanks so much guys, I really appreciate the help.
