It is compatible with vbulletin and this does work on vb
sites. I run one myself plus we have one here and I have tested this on quite a few vb
sites before even going to your site. One of the benefits of working support I have access to quite alot of sites and sign ins for such sites.
Now as noted yes to verify that it came down to your vb
I turned off the vb3 integration. The move delete box as noted appears under the photo information.
None of your ajax java works on Photopost it appears. I turned on your random images on the sidebar and same thing the ajax does not work. This is usually an incompatibility issue with some vb
modification or java code in header footer etc. This is why when you turn off the vb
integration it works.
I think I might have to scour your header footer for code that might affect things disable all product and plugin addons etc to see what might be the issue.