Structure-tutorial: how to add button-swf's?

I just completed “The Best Structure for your Flash Site”-tutorial, but I’m having some trouble adding button-swf’s.

This is what I did:
1: made a simple swf containing a single button named “btn.swf”
2: changed the value of the image node in the xml to “btn.swf”

It loads perfectly, but does not respond to mouseover.

Any idea how I can fix this?

:king: