Simple Menu, .swf included`

Hey all, I have a menu I am trying to do and seem to have run into a little road block. This is my first menu and I am kinda new to actionscript as well, but i know this can work.

basically all I am doing is when the user rolls over my top navigation button, i play a MC that passes over a list of links, emulating a drop down effect. However the other link items for other buttons are getting in the way.
thanks

just rename the attachment to .swf