Loading external movies and levels

Okay let me see if I can explain this the best I can. I have Movie1 loaded into the Maintime line and then Movie 1 has a button which calls another movie to load into the Maintime line. I cannot seem to get this loaded right.

Below is the code for my button

on(release) {
_root.createEmptyMovieClip(“port”, 5)
loadMovie(“portfolio.swf”, “port”);
setProperty(“port”, _x, 100);
setProperty(“port”, _y, 20);
}