For a game hub: parse_hub("tiberath.storytelling")
For a member site: parse_hub("tiberath", TRUE);
For a full game hub: parse_hub("tiberath.storytelling", FALSE, "long=true");
For a full member site: parse_hub("tiberath", TRUE, "long=true");
Please be aware anything on that PHP page is extreme outdated. (Minus the PHP to DM communication, that's pretty much still the only script for that purpose I'm aware of.)
$start = strpos($game, 'users');
Changing 'users' to 'players' should work. Right now, it's only finding the 'users' list from the waiting list.