Am I missing something? Gallery not displaying

Is there a lack of functionality with my theme (Evolution from Elegant Themes)? I installed/activated the plugin. I modified the thumbnail size, I followed the instructions in the FAQ for install. After inserting the gallery into post and viewing the post, this is what I see:

http://eventfullyash.com/portfolio/gallery-test-9/

It doesn’t remotely resemble the gallery in the demo. Or a gallery at all. And only one image is displaying medium even though I asked them all to. Please help!

http://ww.wp.xz.cn/extend/plugins/post-gallery-slider/