Lightbox plugins not working

Hello

My previous post seems to have got lost in the ether, I’m running the site:

http://duncanpenfoldphotography.co.uk/

for some reason I cannot get any lightbox style plugins to work I.e. when images are clicked they go to another page which I’d rather keep hidden for asthectics, rather than opening in the usual lightbox style.

I am currently using the Brunelleschi theme but I have tried installing other themes with the same results.

any help would be greatly appreciated
many thanks

Duncan