Well im not sure what its happening, but this is what the nwnx log says :
NWN Extender V.2.6.1 (c) 2005 by Ingmar Stieger (Papillon) and Jeroen Broekhuizen visit us at http://www.nwnx.org
* Loading plugins... * Plugin chat is loaded. * Plugin leto is loaded. * An error occured during OnCreate of odbc * Plugin resetplugin is loaded. * An error occured while loading extension speech (126: The specified module could not be found. ) * NWNX2 activated. * NWNX2 shutting down... * NWNX2 shutdown successfull.
You are missing the chat program itself. You need to download the NWNX2_and_plugins.rar.exe from the SIMTools page and put all those files in your nwn folder. That should solve your issue. If you already did, try it again, one might've corrupted during download.