This is Landscapes, a free, fully standards-compliant CSS template designed by Free CSS Templates. The slideshow uses photos from PDPhoto.org and is powered by Poptrox (a jQuery plugin by NodeThirtyThree). This free template is released under a Creative Commons Attributionslicense, so you’re pretty much free to do whatever you want with it (even use it commercially) provided you keep the links in the footer intact. Aside from that, have fun with it :)