I've run through the same problem. The thing is we forgot to implement the setAction method. It was defined in application/controllers/GuestbookController.php but we forgot to paste the code inside the method. Just paste the missing text and you are all set.
Realized this by running diff on my project folder against the source code in tar.gz provided in the first section of the quick start. \o -- View this message in context: http://zend-framework-community.634137.n4.nabble.com/Quick-start-trouble-with-sign-phtml-and-setAction-tp634148p3684154.html Sent from the Zend Framework mailing list archive at Nabble.com.
