ok! LISTEN UP, THERES A WAY TO FIX ALL THIS... WHEN U START RENDERING, GO TO LAY->DUPE LAYER.
THENN GO TO LAYER-> NEW LAYER. MAKE IT SO THAT THE BACKGROUND COPY IS FIRST, THE NEW LAYER IS SECOND, AND THE ORIGNAL BACKGROUND IS 3RD.. CLICK ON UR CPY OF BACKGROUND. START RENDERING IT WITH PENTOOL LIKE IT SHOWS IN THIS TUT. WHEN U HAVE GONE ALL AROUND, right click,make selection i use a 1 pixel or something like that
hit ctr+shift+I and hit delete... u'll see that nothing happened.now,... where the eyeballs are, deselect the original background and there u go