Loading a SWF and setting .onpress

Is there a way to load a SWF and then turn it into a clickable button?

I’ve tried this:

loadMovie(“test.swf”, _root.movieholder);
_root.movieholder.onPress = clicked;
function clicked()
//Do stuff

But this doesn’t make test.swf clickable. I think because it’s setting .onPress for _root.movieholder, not for test.swf.

I’ve also tried:

loadMovieNum(“test.swf”, 5);
Nut for some reason I cannot access _level5

Any ideas?