I've used Flyspray <http://flyspray.org/&#62 http://flyspray.org/> on a couple of projects with two other team members and it has worked well. It is php+mysql/p

I've used Flyspray <http://flyspray.org/&#62 http://flyspray.org/> on a couple of projects with two other team members and it has worked well. It is php+mysql/postgresql, so it installs almost anywhere.