Thank you Padonak and Aralus for your suggestions.
Here's what really helped me out with my photo gallery demo:
The trouble was I was googling "photo swipe" and "jquery photo swipe" instead of "jquery mobile swipe". Hopefully this will help out others in my position.
The demo went very well! Now I just need to crack down and learn jQuery and jQuery Mobile properly.
And just fyi - I didn't set the deadline, the deadline was set for me. Maybe I shouldn't have agreed to it, but I really wanted to show off for this lady who was available for just one day.