free internet based defect/issue management for ASP.Net absed project

Question

I am working on a ASP.Net project with a team of 3 members. Due to geographical reasons, I need to have a defect management system that should be

• free (the project is low cost)
• internet based
• should allow 5-10 people

I was wondering if someone could suggest me a good solution or may be redirect me to some useful links

Answer 1

http://www.aceproject.com/

http://Bug-Track.com/

http://www.defectr.com/

http://samba.anu.edu.au/cgi-bin/jitterbug

Answer 2

http://www.project2manage.com/

Answer 3

You should try http://www.pacifictimesheet.com