Buttons to load internal MCs

Hi – I realize this is fairly simple, but I’m stumped by documentation that goes over my head and that is generally for more complicated items. Here’s what I want:

In an MX04 movie, I want to be able to use buttons to change images in a gallery. So far, so good. Each image, when you click the thumbnail, fades in.

So far, I’ve been using “gotoAndPlay” and, yes, doing the tweens on the timeline. This gets to be a pain.

Instead, I would like to create multiple MC within the main movie and call them up with the thumbnail buttons.

Please help!