Buttons inside movie clips

Hey, I’ve got a scrolling thumbnail movie clip.

Inside the movie clip are 5 buttons.

I can’t get the buttons to work.

I know to put the actionscript(2.0) ON the button and not IN the button.

The sripting is a simple on press gotoandplay frame# command.

yet it won’t work.

Is there something specific I’m missing when putting buttons inside a movie clip?