I want my scrolling Thumbnail still on its load-up!

Firstly hey all hope you can help me with what is hopefully an easy question.

Firstly I’ve made a vertical scrolling verison based on the below Tutorial (2nd Link)… However because of the lopped motion Tween it begins scrolling instantly after its loaded. I want it to load frozen until the mouse is rolled-on is there anyway in actionscript or by editting the tweens to make it this possible???

This link is an example of my thumbnail scroller (sorry for the shameless self promo of my website!)
http://seantooley.com/pages/Scars&Sp…sGallery15.htm

This is a link to the tutorial I used (tutvid.com) Though it was good!.
http://www.youtube.com/watch?v=2TrIQ… DBDD6&index=5

Lastly the actionscript if it helps. which I hope someone can! I would be a very grateful man to whoever can provide the answer !!

_root.onEnterFrame = function(){
if(_root._xmouse<240) {
myVar=false;
}
if(_root._xmouse>2) {
myVar=true;
}

if(_root._ymouse<13 and myVar==true) {
ImageBar.prevFrame();
}
if(_root._ymouse>445and myVar==true) {
ImageBar.nextFrame();
}
}

Thanks again Sean Tooley