Wierd button problem, any ideas / help?

OK I’m a bit stumped, I click on a thumbnail and an image opens, but then when I click on another thumbnail, one or more of the other thumbnails play the “mouse out” part of their movie clip. it just doesn’t look tidy. I have all the thumbnail buttons on separate layers and the images on one layer as this seemed to stop the skipping effect.
the thumbnails are basically a buton with a small movie clip on the “up” and “over” frames.
http://www.itsmy-space.co.uk/austin/index.htm

So far the whole site is very rough, so don’t go mad picking it to bits :snug: the portraits and fashion buttons link to the same gallery at the moment, until I crack this issue. All images in each gallery are contained within the loaded gallery movie, so I can load the whole of each gallery at the start.