Multiple functions on a button

Hi i am trying to do my website and i liked the “blue Jay menu easing effect” , i readjusted the code and the graph to make it go scrolling vertically up and down on the stage. Basically by clicking the buttons a long pic will go up and down and stop with an easing effect. My problem is that i want external movie clips with my pictures load into a specific target on the main , if i am pressing a button i want my main clip to go to his spot an then load the external movie, and then when i press another button the movie already loaded has to stay in his position and roll up or down.I know it’s very confusing and since i am a beginner i maybe trying to do something that is out of mu league but if anyone can help it would be great.
Also my english is no so good so i am not sure if i expressed myself properly.
I’ll post the Fla and the external(box)
gammacurta.com/movie.zip
Thanks a lot
Massimo