HgLab is a behind-the-firewall self-hosted Mercurial server and source control management system. This is where you'll find all the required documentation, starting from Installation Instructions to User Guide to Administrator Guide.
Getting Started guide is the best way to know HgLab.
To see HgLab live, go to http://live.hglabhq.com.
Otherwise, use the menus on the right to get detailed information about features. If you encounter a problem, please contact HgLab Support.