Nant,
Excellent work! I love the last updated date - I know photos are of great interest on the alumni site I run and that members will rave about being able to have a list of most recently updated photo galleries!

I also want to echo others here that for any user posted content such as photos it is important for many community site to maintain the all things are moderated design of CB. I would even go so far as to say that the fact you have taken the trouble to code this might give some pause to the idea of having moderation be a key consideration (and maybe requirement) of all plug-in development. If CB doesn't already have APIs for plug-ins to user submitted content to voluntarily make themselves subject to moderation - it would be a great roadmap item.

Great job !!!