[away3d] How to use SpringCam in right way?

[cyberDog]

I have 3ds model and extrude on scene. I want to set camera like in
this demo 
http://agit8.turbulent.ca/bwp/2009/01/22/spring-physics-powered-3d-camera-for-away3d-and-papervision/.
But my springcam don't so... when i rotate my model (model.rotationZ)
to turn left or right camera rotates whole world around:( and i wonder
how low FPS with springcam (10), with HoverCamera it was about 30-40.

sorry for my bad english.

this is part of my code that controls camera and model:

var camera:SpringCam = new SpringCam();
3dmodel.scale(400);

camera.target = 3dmodel;
camera.mass = 10;
camera.damping = 10;
camera.stiffness = 4;
camera.y = 10000; //whithout it problem is still there
camera.z = 10000; //without it too
camera.lookAt(3dmodel.position);
camera.lookOffset = new Number3D(0,0, 0);
camera.positionOffset = new Number3D(0, -50, 40);

function onEnterFrame(e:Event):void
{
...blalblabla...
                                //left - right
                                if (keysDown['37'] == true)
                                {
                                        3dmodel.rotationZ -= 2;
                                }

                                if (keysDown['39'] == true)
                                {
                                        3dmodel.rotationZ += 2;
                                }
...blalblabla.....
                                carRadians= ((3dmodel.rotationZ)/360)*
(2*Math.PI);
                                3dmodel.x += Math.cos(carRadians) * 
carparams.speed;
                                3dmodel.y += Math.sin(carRadians) * 
carparams.speed;
view.render();
}


result you can see here http://77.108.98.131/test.html