This component enables teams to track outstanding cases which need resolution. It provides e-mail notifications to participants about updates to cases. Similar to many issue tracking systems.

Case Tracker module
http://www.drupal.org/project/casetracker

Case Tracker module readme
http://cvs.drupal.org/viewcvs/drupal/contributions/modules/casetracker/R...

CCK based project management
http://groups.drupal.org/node/409

Drupal Group
http://groups.drupal.org/issue-tracking-and-software-releases