Yup another preloader question

http://www.kirupa.com/developer/actionscript/tween_as_preloader.htm

Okay my preloader is a tween with masking but I want it to load my external swf’s while it is loading the main movie.

I know there is a simple way of doing it but hell I have been playing with it for awhile and nada. Fresh perspective is needed before I kill myself over something stupid.

Thanks your friendly lurker