In the admin area I took the following pathway:

Admin>Extensions>Module Manager>Autson Slideshow Curator>Images

I simply changed the first image in the Autson Slideshow and that's when it stopped displaying
any images at the front-end, whereas it had been working perfectly up
until that point.

You can see the problem from the front-end of the site here:

http://www.oxfordcitywalk.co.uk/index.php/oxford-showcase

Can you help?

David G