Sethi Family Guestbook is a clean-interfaced guestbook script written in PHP. It features: Page spanning; (Optional) private guestbook comment; User can select the number of entries per page to display, guestbook format (elegant, simple, or standard), and background color; and Uses a text file.
Easyboard is a guestbook script that works with a text file for data storage, the display can be tweaked by setting variables and the script is just one part of code that you have to insert into your php page.
Big Sam, stands for "Built-In Gestbook Stand-Alone Module," is a PHP guestbook script that you just have to place on your public html files directory, and it theoretically should work without any particular manipulations.
ChitChat is a message board/guestbook script that uses a text file instead of a database for ease of use. It can be set up as a daily, weekly or monthly board and has various web-based admin functions such as IP blocking, bad word filtering, emailing to admin, forward or reverse listing of messages and icons for each message.
This is a PHP script which allows users to add and display their quotes on your Web site. It uses a mySQL database on backend for data handling. v1.2 adds: Ability to format page colors added, Removal of ability for users to choose number of entries displayed, Change of homefaire field to email, Gateway "welcome" page now obsolete, Added config file for easier installation, Added nicer formatting, Added new field "quoteID" to database schema to allow sorting entries by last one added, and Added error checking on Name and Quote required fields.
Powie's PHP Guestbook is a PHP/MySQL-based guestbook application. It features: neat interface using several images, easy customization using footer and header, ICQ status support for guestbook writer if the field is entered, Web admin interface for managing guestbook entries, and more.