MXML + AS = frustrating!

[team08]

I am a c+-#? programmer and am getting killed by this programming environment. AS in flex has been great, straight forward, no problems. Now that I am trying to integrate it into MXML, I want to shoot myself. I have a standalone app in AS, that is basically a CAD/drawing program. Now I want it to live inside a nice graphical environment with buttons for controls. I could keep using AS, but it seems most people use MXML. So the class is called "test" and I dont know how to make an object in MXML and then draw it. Here is the MXML code:

<?xml version="1.0" encoding="utf-8"?>
<!--usingas/eightCAD.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
	<mx:Script><![CDDATA[
		import test;
		
		public var x:test = new test();
	]]></mx:Script>		
	<mx:Button id="b1" label="Draw"
		click="x.drawBoard();"/>
</mx:Application>

and the AS code starts as:

package {
	import flash.display.Sprite;
	import flash.display.Shape;
	import flash.geom.Point;
	import flash.geom.Matrix;
	import flash.events.MouseEvent;
	import flash.display.Loader;
	import flash.net.URLRequest;
	import flash.events.Event;
	import flash.display.BitmapData;

	public class test extends Sprite
	{
		private var imgLoader:Loader;
		private var boardSprite:Sprite = new Sprite();

Thanks for any help!