Harlem Designs Guestbook is a powerful php guestbook which can handle a lot of data without using any database like mySQL. You can configure the layout and many other options to adapt it to your needs. It also includes an admin module to remove or change entries, to configure the whole script, choose language, take backups, word-filter, rate site and other important stuff. Compared to other database-driven programs, the speed is just as fast or faster.
