The link to the site is http://mbonwick.110mb.com/gallery
From reading what little information 110mb.com have made available, I understand that the HTTP referrer must either:
be 110mb.com
be site.110mb.com (where site is the user's site, in my case mbonwick.110mb.com)
or be non existant, through vopying and pasting a link.
Even so, I still can't see how this would affect zenphoto.