General Support: My big picture links aren't going to right area

Hi Guys. This program has been a great find for me and perfect for a site I am working on. I just have one thing that I can't get working. When I click on the slideshow or enlarged images then I go to a page where my links and stylesheet no longer work. I'm not sure what I have done to make this happen??? On the demo the enlarged image when clicked on takes you to a blank page with just the picture. I'm not sure what file needs to be modified to fix the incorrect link. Any help much appreciated.