Upgrade to Community Server 2007
I was finally able to complete an upgrade of our blog software to Community Server 2007. In past versions, I had to write custom code to support what we call "global categories". These were categories that any blog on the site could use. With the new tag-based system, this is no longer necessary.
The major work was in learning the new theming system and creating a Clarity custom theme. The new theme engine is fairly easy to use once you get the hang of it, but there is still a bit of a learning curve. Still I do think it is easier than before.
I've been using Community Server 2007 on my personal blog for a few months now and I'm glad we can start using it for Clarity Blogs. There are a lot of little fixes and enhancements that make it a really nice update.