Nice one Hex.
What language do you write the DvT Tools in?
I found a few decent sites with info on how to implement or get the most info from a UT3 server.
Check these out:
The first link is a site with info on the info you can get from a server.
UT3 query protocol - UnrealAdminWiki
The second link is a PHP script that can be added to a website or other program that can take the info from a server and display it. Depending on what language you are writing the DvT Tools in, you or someone else might be able to implement it into the program.
http://www.penetrate.nl/ut3serverquery.phps
Let me know if I can be of any help with it since starting after next Weds I have Christmas break for about a month.