I just switched the solarphp.com PEAR server over from the old Chiara_PEAR_Server system to Pirum. It only took a couple hours to figure out Pirum, then plan and execute the conversion and server update. The presentation is not as slick as I'd like, but it's dead-stupid simple to set up, and I can tweak the CSS etc. later.
Yesterday, I upgraded the solarphp.com server from Ubuntu 8.04 to 10.04. While this gives us easy access to PHP 5.3.2 packages, it appears to have screwed up Trac. I appreciate your patience while I work this out; perhaps it presages a move to Wez Furlong's "Mtrack" as a replacement.
UPDATE (22 Jun): I have Trac back up and running. Thanks for your patience, all.