Loading external swf with ac in timeline

Ok Im trying to load a external swf with action script on my time line. the code Im using is this on the first frame of my action layer _root.nav_loader.loadMovie(“nav.swf”);

I have made a blank mc and given it the intance name nav_loader but yet it doesnt not load my nav.swf. Any help would be great I have inclyuded a link to the fla and the nav swf in a rar file.

http://spyderdesignz.com/justin/[COLOR=#003366]SpyderDesignz.rar[/COLOR]

[COLOR=#003366]Thanks for any help everyone![/COLOR]