Depends on your server's connectivity, I suspect. Nothing's changed at Dmoz, and the demo version still works here:

http://psychcentral.com/cgi-bin/pod2.cgi

One way to test this is to log into your server via telnet or SSH and run:

lynx http://dmoz.org

If that pulls up a page, then I'm not sure what's the problem. If it doesn't (if it times out), then the problem is connectivity between your server and Dmoz.

Generally POD is not really supported any longer, unless Dmoz changes something to seriously break it.

John