Do I have to learn how to use shaders to be able to do layered randerings?

If you have EIAS 7, then you just add the layers shader to the Layers tab in the Render info window.  It doesn’t require you know how to use other shaders, just how to use it

Ian did a tutorial here,
http://homepage.mac.com/cake_or_death/weekofvideos/ei_layers.mov

Yon

It is very fast, the trick part is the order in which the EI_layers should be placed but you can do these in Photoshop as well.

OK, I did it.  Very nice tutorial.  Thanks a lot guys.