Loading swfs

I am stuck again I know this maybe easy but got me. In the files I have uploaded is my samples. one movie =main. with 3 buttons with actions, each button I want to load a exturnal swf
file into my main movie. As you see button 1 works fine but the other 2 wont work :be: The first swf file I added a button to close, Can each of my buttons have a action so soon as number 2 swf opens number 1 swf closes. so on ?

My aim is to load 5 swf movie files.

Many thanks.

Regards Barrie