He can't on his own. He's waiting until he releases version 1.0.0, then he'll look for a good host willing to give up a lot of hosting space.
What he said. When ZHRPG is out of beta, I would like to find a reliable person who will keep an active forum thread in the EU Custom Maps forum in my name as well as upload new versions of ZHRPG as they become available. Since ZHRPG will span 6 maps, this will essentially means almost all of a person's current available hosting space on B.net.