I would try one server at a time to see if they work (and work well)
Code:
servers.size=1
servers[0].url="http://zippy.naviextras.com/services/tmclite/data/nng-igo-tmc-iphone/0/"
or
Code:
servers.size=1
servers[0].url="http://zippy.naviextras.com/services/tmclite/data/nng-igo-tmc-russia/0/"; unless you're in Russia, why use this?
or
Code:
servers.size=1
servers[0].url="http://tmchttp0.naviextras.com/nng-igo-tmc-primo/0/"
Once you determined which ones worked, you can add it to your sys.txt
Sorry, right off hand I do not know the defaults value for other settings.