MC inside an MC

1

I got a movie clip which is an image, and on release, it tells another movie clip to go to appear, which is supposed to be the navigation, and inside this MC i have another MC, eventually i’ll have more, because each link will be a seperate MC inside this MC. But when u rollover the MC that is supposed to be the button, everything dissapears… Here’s the .fla http://www.xerogravity.net/site2.fla