Error message 1056 and image on top of image problem

Question

I am trying to place a button on the screen and make it spin when mouse_over (which will be one of mutiple buttons with different instance names. ) The code I wrote is putting  2 colorwheels on the screen, one on top of the other, I can see the bottom one is spinning but I can't seem to figure out why the top one is there.
But then, I get a error code message 1056 with no compile errors when I mouse over the dial:ReferenceError: Error #1056: Cannot create property rotation on builtin.as$0.MethodClosure.
    at fl.transitions::Tween/setPosition()
    at fl.transitions::Tween/set position()
    at fl.transitions::Tween()
    at Colorwheel/rotateKids()
I am pretty new at as3 so thanks for your patience!  I have been trying to figure this out for days!!!  I am guessing that I have to import a class, but don't know what.
here is my code
import fl.transitions.Tween;
import fl.transitions.easing.*;
import flash.events.Event;
static_mc.play();
var kids_btn = new Cwcopy_mc;
addChild(kids_btn);
kids_btn.x = 745.1;
kids_btn.y = 122.2;
kids_btn.height = 100;
kids_btn.width = 100;
kids_btn.addEventListener(MouseEvent.MOUSE_OVER, rotateKids);
    function rotateKids(e:MouseEvent):void  {
    var spin:Tween = new Tween(rotateKids, "rotation", Strong.easeInOut, 0, 360, 5, true);

Answer 1

ok, i changed that, now it looks like nothing is happening when its moused over, but I don't get any error messages.
Previously it has worked sparatically, i have changed the code so many times I am not sure what is what at this point!
So I just added this code:
kids_btn.addEventListener(MouseEvent.MOUSE_DOWN, goSlide);
    function goSlide(e:MouseEvent):void  {
        gotoAndStop("slide")
Now, when I click on the dial  it goes to the "slide" frame and then the top dial will spin and it appears to have another dial underneath it  (I see this becuz the dial isn't symetrical and spins a bit crooked)
i want the dial to spin continuously when I mouse over it before I click on it.
here's the complete code
import fl.transitions.Tween;
import fl.transitions.easing.*;
import flash.events.Event;
static_mc.play();
var kids_btn = new Cwcopy_mc;
addChild(kids_btn);
kids_btn.x = 745.1;
kids_btn.y = 122.2;
kids_btn.height = 100;
kids_btn.width = 100;
kids_btn.addEventListener(MouseEvent.MOUSE_OVER, rotateKids);
    function rotateKids(e:MouseEvent):void  {
    var spin:Tween = new Tween(kids_btn, "rotation", Strong.easeInOut, 0, 360, 5, true);
kids_btn.addEventListener(MouseEvent.MOUSE_DOWN, goSlide);
    function goSlide(e:MouseEvent):void  {
        gotoAndStop("slide")