Ext.swf in next scene?

I hope someone can help me with this… I found somewhat similar topics, but nothing really helpfull. Hope I haven’t overlooked. This is the problem:

I have a menu in scene1.

I want to be able to click a btn in this menu and then load an external .swf in a loader in scene2… can’t get it to work!

The code now is something like:

welcome_mc.[COLOR=blue]onRelease[/COLOR] = [COLOR=blue]function[/COLOR] () {
loader_mc.[COLOR=blue]loadMovie/COLOR;
}

Where do I tell the script that the loader_mc is in scene2 and to load the ext .swf into it there?