PHP/MySQL based project for service management in a French University. Coster is now on version 1.3 (july 2009). Files are available via the SVN repository.
I'm the programmer of this project, so the least I can do is recommend it. This software is currently used by 3 different departments in the University of Versailles St-Quentin : Computer Science, Biology, Physics. If you are a user of this system, please provide bug reports and feature requests in order to improve the software.