http://www.pwnedemu.com/
you will find the server on the emu select screen named as TZ/VZ (or something like that)
its the only pvp server worth it right now. the golden time is over tho...there have been over 200 ppl (dual-boxing was allowed) in 2009 until the former staff closed the project. a dev of that project returned and restarted the server but it was never the same again for several reasons (wipes, no advertisment)
if you want to pvp, thats the only option for you right now.