Is there somewhere that I can try out the sort functionality I would get as a customer?
Have a look at the Sample Page. This and the associated Gallery contains most of the functionality you would see if you were a customer. This includes navigating through your photos, starting and stopping slideshows, ordering prints and more. Take a look. I have password protected the site, as this is probably how your content would be setup. The password is: password
If there as anything missing that you would like to see covered, please get in touch.