Loading with Linkage from an external swf


I’m sure this will be a really easy problem to overcome but I can’t seem to work out how to do it. Can someone tell me how to access Movie Clips from the Library (that have been linkaged) in a swf that I have loaded in externally.

This is the function I am using to load the swf in itself.

private function Load_SWF(swf_to_load:String) {
	var container:MovieClip = _root.createEmptyMovieClip("container", _root.getNextHighestDepth());
	var mcLoader:MovieClipLoader = new MovieClipLoader();
	mcLoader.loadClip(swf_to_load, container);