for(i:int=0;i<box.length;i++) {
var tween:Tween = new Tween(box[i], “x”, Strong.easeOut, 0, 100, 1, true);
tween.looping = false;
}
should be replaced by
tweens:Array = new Array();
for(i:int=0;i<box.length;i++) {
var tween:Tween = new Tween(box[i], “x”, Strong.easeOut, 0, 100, 1, true);
tween.looping = false;
tweens.push(tween);
}