Slideshow dose not show

I have just downloaded this plug-in and added photos to the gallery.

I then followed the steps to adding the gallery onto my page but it always shows up as if there is nothing there. It dose not even show an empty box or coding. it’s like it is not there.

The webpage i am working on is:
http://www.sazaniassociates.org.uk/media-library/images/

http://wordpress.org/extend/plugins/slideshow-gallery/