Need help with Drop Down Navigation in AS3

I’m not great with flash and need help with ActionScript 3

I have a website I am working on. I am attempting to have a drop down within the navigation. On the edge of the web page I have a tab, that when rolled over is supposed to pop out and show the buttons. I can’t seem to make the tab come out when the mouse rolls over it. Your help or at least a point in the right direction will greatly help! I have some code but I don’t really think it will help at all to post it, however I can if anyone needs it to help me.