Topic: Thumbnail Animation Customized Please help

K so I am a pretty good actionscript guy but would still need some help on this if any of you have suggestions.

The client that I am working with would like me to animate her thumbnails to something like is on this site. westsidestudio(dot)com click on photogrephers. When you click the arrows near the thumbs one thumb leves and the next in line is added.

The site that i am developing has vertical thumbs so I would like the top thum to animate up and the next in line to come in from the bottom. Here is the site that I am developing mswallace(dot)com/siren.

So can anyone suggest to me where in the source code I can make this change?

Matthew Wallace