It does nothing

Hi, i installed and choose “lens” but my thumbnail it does nothing..it just open in a window form as how it used to be.. I tried all 3 features seems no changes..please help
btw this is my website : http://www.jnproductreview.com

http://wordpress.org/plugins/zoom-image/