Cannot get images to show in slider

Hi there - I have just installed showcase on a testsite http://testshopp.alirat.net and after scouring the forums and making sure I had the full path to the images http://testshopp.alirat.net/img/ (i'm using the images that came with the theme) I am tearing my hair out. I am using WP 3.1.3 and only have the wpmu update plugin to stop the nag messages.

Looking forward to some help on this it's been a frustrating day.