Need help with this menu

I have this menu where when the mouse is over an invisible hit zone it loads an external swf containing 3 animated buttons into a blank movie and then motion tweens the movie to slide out from under a header, however the buttons on the ext swf don’t react/play.

I’m guessing it’s because they are under the invisible hit zone an hence the mouse isn’t activating their individual hit zones.

How do I fix this?

The swfs and Flas are attached.

NOTE: “navtest.swf” is loaded into “navtest2.swf”