Sigma

http://www.sigma-six.org/

unzip sigma.zip
mysql -u sigma -p sigma < type="mysql">

installation:

-copy all files to your web host
-use phpmyadmin or your mysql interface to run site.sql against your database.
-open site.xml and edit the database section with your database details.
-set permissions on the upload directory to allow write/delete -go to index.php and login with username of admin with a password of test.
-be sure to change the passwords for the admin and regular user.

Add this to your htaccess file to prevent viewing of the xml config file.