Select the Object layer and the select the content of the layer as a Selection.
Select the Highlight Layer and delete the Selection - this will leave a 2 pixel wide outline for the highlight.
Select the Shadow Layer and delete the Selection - this will leave a 2 pixel wide outline for the shadow.
Also, this bit dosn't work:
In turn select the Highlight and Shadow layers and use the Output White Level of the Levels Control to make the Highlight and Shadow a mid gray.
Can anyone point me to a tutorial that is explained in a way that works as this above one is flawed.