Willow Issue Tracking System

Issue tracker is a highly-customizable issue and task tracking system. It comes with powerful reporting capabilities, a security system to control what users can see and do, and a flexible filtering mechanism to control what appears in job listings. The pro version adds a custom field manager and a faq system to help you customize the system to suit your needs. It is MUCH nicer than bugzilla -- you should try it! Online demos available at the website.