Attach instance name to script

Hi there!

I'm using the following bit of AS2 on a couple of mc's of my project so I would like to use the specific instance name in this:

onClipEvent(enterFrame){
this._x = this._x + (_root.intSlideToX - this._x ) /5;
this._y = this._y + (_root.intSlideToY - this._y ) /5;
}

It needs to call printMC, specifically.

Here's what's on the button:
on (release) {
_root.intSlideToX = 642.5
_root.intSlideToY = -187.3
}

printMC is NOT on the root level but the button is.

Any help would be wildly appreciated!

i'm using flash cs4