Targeting Dynamic Clips in Array

Hi Guys.

I made an array containg 3 clips and dynamically attached them to my main timeline. I can successfully tween all of them with the following code.

import mx.transitions.Tween;
import mx.transitions.easing.*;
xpos = 50;
ypos = 100;
mydistance = 20;
var myclips = ["blue","grey","red"];
 var b = this.attachMovie(myclips*,"myclip2"+i,i);
     b._x = xpos;
     b._y = ypos;
  xpos += b._width + mydistance;
  b.onRollOver = function(){
   new Tween(this,"_xscale",Back.easeOut,this._xscale,120,3,true);

However, what I want to do is to target the three with different tweens. For example, how do I tween the _xscale of one and the _x of the one next to it? I know I can do it without having dynamically attach the clips but this method (if I can learn it) seems to have more power.

Thanx in advance!