We use Trac: http://trac.edgewall.org[^] It integrates well with subversion and was pretty simple to setup (for me: windoze server, python, trac, apache httpd) or you can get pre-configured installers from a few places. Or you could investigate the apache incubator "BloodHound" which is based on Trac: http://bloodhound.apache.org/[^]