General Support: Automatic Update Script?

Hey guys,
I have a plogger gallery with links to individual galleries contained within it, contained on a website. Before implementing Plogger, I used to individually upload JPEG images to the web server, and place an "updated" notice on the homepage noting that photos were added on whatever date.

The point of me implementing Plogger was to automate the process of uploading photos to the site, as well as mentioning that photos were added on such and such a day on the homepage for visitors. Does anyone know of a way to design some sort of functionality that I could place on my homepage that would take a look at my Plogger gallery and determine the last date that photos were added to the gallery? This would serve as a "last updated" automatic script of sorts, if it's possible.

Thanks in advance.

Mike