AKSteve,
That's a terrific looking pizza. In the beginning, I, too, had problems keeping the unbaked eggs on the pizza from sliding and found that I had to build barriers using cheese and maybe some toppings at the outside of the pizza to contain the raw eggs. I also found using a pizza screen helpful although the pizza will bake up somewhat differently using the screen. Using a combination of screen and preheated stone will also work.
Peter