Select Image Gallery down below on the list (yes I know you said not in a forum, but see it first...)
Choose a post. Below each person's name where you would see the Edit/Delete icons, you will see a little camera that says Gallery.
This is my photoalbum application. It shows all of the photos that the registered user has uploaded and allows other users to scroll through them. It keeps track of the most popular galleries and shows those at the bottom. It allows the user to edit their own gallery-- change the image name or add a description.
If you have imagemagick or the right GD library you could mod it so it shows thumbnails instead of the full size image scrunched. This photoalbum works in concert with the Image Gallery hack by Herb that is available here on these forums. If you want the photoalbum, let me know.