Here is my situation:

I developped a site for a client where they can create small project sites for their clients using an admin site. So, they create a new project, designate a username and password for that specific project, and then upload photos and documents for the client to see. Their client can then login and view the photos and documents that have been posted. These projects can be updated at anytime using the admin site and often contain dozens of photos and documents.

My question is this: Once the project has been completed, I need to figure out a way that the whole project can be "saved". Is there anyway that all of the docuements and photos that have been uploaded for that specific project can all be downloaded and saved into maybe a zip file or something. I am stumped as to how I can do this.

An suggestions or advice is appreciated.