One simple question

Is there a Global server of the game? if so, is it free? where can I get it?
Or maybe I can just open my own server and play alone, and that's it?
cuz this Forum section is kinda messy, without any explenations.

thanks to anyone who answers, and sorry for my English :S

http://eng.projecta3.com ->this is your explanation to 1st question
if u want other servers , go to www.actoz.com
yes, u can make your own prv server based on v.1.20
thats all