Photogallery Doesn't World With Lot's Of Photos (HELP FOR MONEY)

Scotty helped me with making this photo gallery in flash. The only problem is that while it works when there are two or three pictures in it, I need it to work with about 20 pictures. When I put all those in, all it does is lag up and not do anything. Any more than 10 pictures and it wont work. Please help because I have NO idea what to do and the person I am doing this for is *****ing me out really bad. (Also, what it DOES need to do it load images from one fading into the next, no fading to white inbetween).

If this works perfectly, I can paypal you 20 bucks. I need it to work.