Actually is pretty easy for someone that have a bit of knoledge of gunz, its only add a few commands and code the missing code in both client and server.
I have managed to port the avi recording feature from 2009 files to 2008 ones and also rebuilt and added ping to the server list, (complete recode of the serverlist gunz widget).
And i'm working to port survival to 2007/2008 files too, i have the base but i need to first finish the HG client, then add the rest of the features, also, i have plans to implement a auction system ingame to trade quest items instead of waiting for them in the quests.
http://img340.imageshack.us/img340/5236/59019634.jpg