Trying to zoom a duplicate mc, code error

programming flash
1

With this:

i = 0;
while (i<25) {
	//duplicateMovieClip(dot, "dot"+i, i);
	dot.duplicateMovieClip("dot"+i, i);
	i++;



dot.onRollOver = function(){ 
dot.tween("_xscale", 40, 4.4, mx.transitions.easing.Strong.easeOut);
dot.tween("_yscale", 40, 4.4, mx.transitions.easing.Strong.easeOut);
}; 
dot.onRollOut = function(){ 
dot.tween("_xscale", 140, 1.4, mx.transitions.easing.Strong.easeOut);
dot.tween("_yscale", 140, 1.4, mx.transitions.easing.Strong.easeOut);
}; 
}

I want to add in a zoom on the little critters that are created, and am trying to merge two code blocks I have learned but am stumped from there