Hi Dr. Amirnovin,
Just to bring it to your attention in case you hadn't already seen my post, I replied to your post on my talk page regarding the HPA axis figure. Essentially I recreated the figure so that rights complications can be avoided. Happy holidays!
http://upload.wikimedia.org/wikipedia/commons/b/b4/Brian_M_Sweis_HPA_Axis_Diagram_2012.pdf