I too am new to Habari. I started with it about 2 months ago. At first
I installed the 0.6 version on the grounds that it was the "stable,
release" version. But after a while I switched to the latest 0.7 alpha
(I didn't have any luck upgrading, I did a clean install of 0.7)
together with the Trunk plugins. I have actually found it as stable
as, if not more stable than, 0.6. Curiously, I have found that google
searches have thrown up useful pages on the wiki that I hadn't found
by navigating around (pages that I think have been written in
preparation for the official release of 0.7). Just my experience, FWIW.
Philip