When the site finally loaded, the pop-ups seemed to work consistently...
What is not happening as you noted is the other images being loaded.
this one at /images/pf33.JPG is loaded for the larger image and is also loaded for the product info image.
these should be the large image for the large and the medium image for the product info view.
Are you following the correct naming schema?
Code:
standard image = /images/pf33.JPG
medium Image = /images/medium/pf33_MED.JPG
largeer Image = /images/large/pf33_LRG.JPG
If your images are not named in this fashion, correct this and then see if it loads the correct image/name/location
Also, the image file size is large for the /images file (small image) at 20.7k
These should be more like
small = lesss than 4k
medium = 4-6k
large = only large enough to render on screen correctly