Interactivity and Transitions between two .swf's

Ok I followed that transitions between external .swf files and got it working sweet. Then I adapted it a bit so my content loads in a container called “contentmc” at the click of a button on the main timeline.

Simultaneously as a page is being loaded in “contentmc” a nav relating to the page being loaded is loaded into a container called “navmc”. Now I don’t have a problem getting both of these elements to load up, however the problem is, I want the navigation buttons in “navmc” to be able to load additional external .swf files into the “contentmc” container.

I used the same link code provided in the tutorial, however nothing seems to load in “contentmc”. I suspect this is because it is conflicting between the two external .swf files and the main file they are being loaded into. So my question is; is there anyway I can make “navmc” load external swfs into “contentmc”?