Sure, I can do that. In fact, we used to do that, just got lost in all our updates over time. Even works with last 1, 7, 14 or all images.
http://www.photopostdev.com/photopost/index.php http://www.viperalley.com/gallery/index.php
You get "lastest comments" by using the "more" link off the Recent Comments box which takes you through the latest comments and thumbnail views of the images commented on.