If you are an experienced Joomla! 1.5 user, 1.6 will seem very
familiar. There are new templates and improved user interfaces, but
most functionality is the same. The biggest changes are improved access
control (ACL) and nested categories.
Congratulations! You have a Joomla! site! Joomla! makes your site
easy to build a website just the way you want it and keep it simple to
update and maintain.
Joomla! is a flexible and powerful platform,
whether you are building a small site for yourself or a huge site with
hundreds of thousands of visitors. Joomla is open source, which means
you can make it work just the way you want it to.