Trac is a great tool for tracking issues for one project however it doesn't allow to add new sub-projects easily and that's become quite problematic.
JIRA is a another super flexible and configurable tool written in Java which allows you to have almost complete control over project issues. We decided to apply for JIRA Open Source free license and...atlassian folks were very generous to provide us with the free copy of JIRA. Thank you so much!
We installed JIRA at http://jira.limb-project.com, made some minor look-and-feel changes and moved all unresolved issues from Trac there.
We also made some projects in JIRA: a separate project for LIMB 2.x, a bunch of projects for LIMB 3.x packages(each package gets its own project) and one for all project related issues(site redesing, new mailing lists, etc)
Trac link is not available anymore and it simply redirects to JIRA. Good buy, old pal.