Attached is the logger for UT3 which only works under Windows due to problems with the UT3 Linux version. You can download the updated version of UTStatsDB via the SVN repository (see the UTStatsDB home page). If you need a Subversion client I recommend TortoiseSVN (http://tortoisesvn.net).
To run the stat logger, stick the .u file with your other third party mods and include "?AccessControl=UT3Stats.UT3Stats" on your server startup line.