Dmytro Shteflyuk has posted some his his experiences with the Zend Framework already, specifically in dealing with subdirectory issues.

I started discovering of Zend Framework and was confronted with a problem. When I've placed my test sample into site's subdirectory (http://localhost/test/), default router tried to find TestController which is not exists of course and routed me to IndexController/noRoute. It's not good for me. I decided to create my own router.

He gives the code he created to make the routing system work, using the Zend_Controller_Router_Interface and Zend_Controller_Front packages to handle the incoming requests.