Loading swf to specific buried frame label

Hope someone can help. I’ll try to make this as unconfusing as possible.

I have swf with a container loading external swfs.

swf #1 is called “home”. In home on the main timeline is an mc called site_mc. Within that mc is all my content (frame labels/content/etc.)

swf #2 is called “task”. In task same thing. main timeline has a mc that contains all the content called site_mc.

There is a back button in task that I want to use to get to a frame label “part3” in the home.swf that is contained within that swf’s site_mc clip.

Right now I am using this code and I can get back to loading home.swf from the start but I need to get on layer lower to hit the specified frame label “part3”.

Here is the code I have on the back button right now

on (release) {
_root.site_mc.gotoAndStop(“home”);

}

So i need to go from

task.swf
site_mc
part1_mc
backbutton

to

home.swf
site_mc
frame label(“part3”)

Thanks!