Scrolling thumbnail Gallery...HELP!

Can anybody point my in the direction of a good tutorial for a scrolling thumbnail gallery, I have created a movie clip called scroll which contains all the individual thumbnails, and also know how to mask it so only a couple thumbnails show on stage, really it is the action script to control the scrolling action back and forth, and the script to open the movie clip of the full size image on the stage that I am looking for.
This is only the way I thought about creating this, any other perhaps easier options would be appreciated, cant seen to find a good tut on the web.
Regards,
Ryan (beginner/intermediate flash user)