Nether-Book
Nether-Book is an easy to setup, free Guestbook system that features: Unlimited Guestbook book entries, Complete customization of everything such as entries per page, Easy to use interface, Headers, Footers, and Templates make editing the layout a breeze, Adds new entries to the top of the page, Option to include the date and time of when each entry was added, and Control the look and feel of your guestbook through online admin.