Sliding Menu help!

Hi

I have completed the Sliding Menu tutorial. It worked grand. But now i want to make it for just 3 buttons and slide just 3 boxes. Also I wanted the width of movie to 800px wide. But I can not find how to set the orrect distance travelled for this? I have changed it and only one box seems to move with in it.

I am new to AS script so I am sure I am doing something wrong here. Please help! Thanks