1)   Census Bug Tracking and Defect Tracking 6.0
Census is a Web-based bug tracking and defect tracking tool that is fully customizable and integrated with VSS. Features include e-mail notifications, user/group/field-level security, role-based workflow, built-in reporting, and revision history.

 2)   yKAP Issue Management / Bug Tracking Software 2.00
Powerful, cost effective, Customizable, Web based(XML) Bug / Defect tracking, Issue Management product. Unlimited projects, test environments, attachments, export to PDF/RTF/XLS/HTML/Text, email alerts, exhaustive data/trends analysis, history.