Is there a program or config called pure server?
 

Someone had told me it was a great anti-hack thing but i cant seem to find anything related to it....anyone know where to find this and whatt this mod or program does?

Well, there are two things you could be talking about:

sv_pure - This is a setting which doesn't work in MoH (EA Sucks)

PureServers.com - This was a community designed to regulate servers and encourage membership via free advertising and promotions from gaming server providers. It never got off the ground, thanks to EA messing up once again.