The weekend of November 21st, 2009 - we cut over to Plone.
In addition to switching to Plone for our main site, we switch back to Trac from Redmine for collaboration work. Redmine navigation was too confusing, especially to new people or customers.
These moves end the dependence on the old server Dell C521, x2.
And all services are provided by 3 VMs on the new server Dell SC440, xena.