Problem with buttons

I’m in the process building a simple portfolio site for school, but I’m running into some problems. I have everything that isn’t going to change on the main movie. Then for each portfolio button I have it load an external swf to the right in a container. The problem that I’m having is that I’m wanting another new external swf for thumbnails. I can get it to load the first thumbnail, but the buttons to the thumbnail don’t work. Here’s a screenshot to let you know what I’m talking about:(Sorry so ugly :slight_smile: )

Here’s the code for my buttons. (I got it off the transitions between external swf’s tutorial).
b1.onRelease = function() {
if (_root.section != “dog.swf”) {
_root.section = “dog.swf”;
_root.transition.gotoAndPlay(“closing”);
}
};
b2.onRelease = function() {
if (_root.section != “dog2.swf”) {
_root.section = “dog2.swf”;
_root.transition.gotoAndPlay(“closing”);
}
};

I hope this makes sense to you all.
Thanks,
Logan