BLOG:CMS (formerly Nucleus XE) is a Weblog system. It has all the features you can find in Movable Type, WordPress, and Serependity, but also many other unique ones, while still being extremely easy to set up and use. It is based on Nucleus CMS, but ships with 45 certified plugins and many add-ons.
Re: Not at all mature
Thanks for feedback. There are thousands of sites running BLOG:CMS, including sites with hundreds of blogs (multiblog sites).
Re: BLOG:CMS plagued by installation problems
Sorry for the problems, but we do assume you have a working PHP / MySQL (4.0, 4.1) and/or SQLite installation.