Loading swfs

i want to load external swfs into one main movie which will be a timeline movie into 3 different levels any tips to do this?

ie so each swf needs to be loaded in next to each other so scrolling to the right will show the next movie etc. then the movie will be on 3 levels. there will be for example movie_1_1 , movie_1_2 , movie_1_3 , movie_2_1 , movie_2_2 … and so on