[AS 2.0] MC call to another MC

programming flash
1

I’m trying to pull in an swf into an empty movie container from another movie clip. I have a button in a movie clip but it’s trying to pull from another movieclip outside of the one I’m calling from, how do I ask it to call for another movie clip that is embedded 3 movie clips from the root?

Here’s what I have:

on (release) {
    _root._parent._parent._parent.contentbox.loadMovie("contact/contact.swf");
}

I’ve never tried this before and can’t get it to work.