I'm new here, so if this old news forgive me.  I did a search but couldn't find anything on it.  Anyway, I use Google Chrome and it appears to be incompatible with your shopping cart.  With Chrome, hovering over any "Add To Cart" button shows a URL to the *.jpg of the item.  Same with "View Cart".  Works fine with Internet Explorer ... which I normally don't use.

Regards,

Don