Fire event on main timeline from externally loaded SWF

I have a SWF that has a child of loader_mc that loads externals SWFs. I need those external SWFs to fire an event on the main timeline but the path problem is kicking my butt and I can’t seem to figure it out.

So here’s the hierarchy:

loader_mc[INDENT] |
section01.swf (external)
[/INDENT][/INDENT]I need an ENTER_FRAME event to make a button on the main timeline Bounce, for example.

I’ve tried so many things my code looks like spaghetti now.

Anyone have any examples that would work for me, please?