After trying to install a different guestbook and getting nowhere with 404 errors and a closed forum, Phoco Guestbook is a BREATH OF FRESH AIR. First of all there is wonderful documentation that tells you step-by-step how to install Phoco Guestbook. Second of all, this documentation anticipates problems people might have, and explains step-by-step how to work around them. That's why I say it is GREAT! Like a great teacher anticipating what the student needs to know and wonders about. And, needless to say, it installed smoothly with no problems, and works flawlessly (so far).