Modifying Photo Properties
Once you have contributed a photo to the photo gallery, you can update information about the photo by logging in, viewing the Photo Gallery in “List Mode” and using the "View or Change Image Properties" icon.
You can use this interface to change the orientation of photos or assign photos to different system level categories or user defined collections. You can also control who is allowed to see a photo using this interface.
The "Optional Target URL" allows you to select a web-page that will be jumped to when a user clicks on the photo. (The Target URL is only active in certain photo display contexts such as displaying a photo gallery on the side panel or setting up a home page slideshow).
The Optional Target URL should be a fully qualified web URL.