Help with espiral navigation

Hi there, i followed some tutorials of 3D circular motion and i cant get this thing that i want to do works.

http://www.theguaz.com/prueba/

I’m trying to do is to make a dinamic charge of images based on external file.
then i duplicate he same number of items and start to rotate them accordingly to the _ymouse position, and the thing that i can’t get right is the vertical sincro-motion that makes movement like an spiral controlled by the mouse, i like to make a cool navigation between elements of the gallery no mather the amount of elements.

that all… please someone help me here are the files.

http://www.theguaz.com/files.zip

theguaz