phpProjectMaster is an easy to use web-based management tool for Projects, Tasks, Bugs, Customers, Employees and Timesheets. Integrated Wiki. Written in PHP/MySQL+XHTML/Ajax.
Project list screen allows to easily visually control status
Tasks list screen has powerful filters and search capability
Ability to add comments to a Task/Bug. Track Task changes.
Edit Task screen simple, but has Advanced view mode.
With Edit Project screen it's easy to define project params