CS3 Actionscript 3.0 to Actionscript 2.0

I need to downgrade this piece of code to Actionscript 2.0 . I'm not an expert in Flash. Any help? :(
Actionscript Code:
function resizeHandler(e:Event):void {  
      g1_mc.x = 0;  
    g1_mc.y = 0;  
    g1_mc.height = stage.stageHeight;  
    g1_mc.width = (stage.stageWidth - 550) / 2;  
    g2_mc.width = (stage.stageWidth - 550) / 2;  
    g2_mc.x = stage.stageWidth - g2_mc.width;  
    g2_mc.y = 0;  
    g2_mc.height = stage.stageHeight;  
    bigPic.height = 800;  
    bigPic.x = 0;  
    bigPic.y = 0;  
    activator.width = 500;  
    activator.height = 200;  
    activator.x = (stage.stageWidth / 2) - (activator.width / 2);  
}  

stage.align = StageAlign.TOP_LEFT;  
stage.scaleMode = StageScaleMode.NO_SCALE;  
stage.addEventListener(Event.RESIZE, resizeHandler);  

stage.dispatchEvent(new Event(Event.RESIZE));  

// Set variables for numbers we need in our equations  
var activatorWidth:int = activator.width;  
var activatorHeight:int = activator.height;  
var boundX:int = bigPic.x + activator.x * 2;  
var diffX:int = bigPic.width - activatorWidth;  
var easeSpeed:int = 7;  

// Function that activates the movement (MOUSE_OVER activator)  
function activate(event:Event):void {  
    var divX:Number = mouseX / activatorWidth;  
    var moveX:Number = divX * diffX;  
    bigPic.x += (boundX - moveX - bigPic.x) / easeSpeed;  
    trace("Largura do Activator ,activatorWidth,: ", activatorWidth);  
    trace("Limite ,boundX,: ", boundX);  
    trace("divX: ", divX);  
    trace("diffX :", diffX);  
    trace("moveX: ", moveX);  
    trace("bigPic.x: ", bigPic.x);  
    trace("boundX - moveX - bigPic.x ,X posição do bigPic,: ", boundX - moveX - bigPic.x);  
    trace("boundX - moveX - bigPic.x ,X posição do bigPic,: ", (boundX - moveX - bigPic.x) / easeSpeed);  
}  
// Listeners on the activator to Add / Remove Enter Frame Events  
activator.addEventListener(MouseEvent.MOUSE_OVER, addEnterFrameEvent);  
activator.addEventListener(MouseEvent.MOUSE_OUT, removeEnterFrameEvent);  
// Add Enter Frame Event Function  
function addEnterFrameEvent (event:MouseEvent):void {  
    addEventListener(Event.ENTER_FRAME, activate);  
}  
// Remove Enter Frame Event Function  
function removeEnterFrameEvent (event:MouseEvent):void {  
    removeEventListener(Event.ENTER_FRAME, activate);  
}