Okay your image is showing now unlike last time I viewed.
Have you tried turning off all plugins except vbgallery see if that makes a difference?
The issue as I see if viewing your gallery css is your whos online class is empty
Code:
Content visible to verified customers only.
whereas mine is not
Code:
Content visible to verified customers only.
My suggestion is to edit your adv_gallery_index.css template and make sure the contents are like this as I would think maybe you edited your css at some point.
Code:
Content visible to verified customers only.