ProjeQtOr free project management software - climb4fun at sourceforge.net
 

climb4fun at sourceforge.net

Has all features needed, but is as simple as possible. Is very flexible. You can start simple and grow as fast as you like and apply more and more features. Needs only php and MySQL.

I work since one year very successful with Projector RIA and can only strong recommend. Support is great. Application will constantly improved.