Camera zoom in papervision

Hi,

I am getting started with papervision, I have added 6 images as planes and created a 3d scene.

What I would like to know to how do I get the camera to zoom using tweener when I click on an image?

the effect I am looking for is something like this where the camera zooms in easing in.

http://www.flashloaded.com/flashcomponents/3dwall/

Thanks,

AK