Hahaha took me a quick search 2nd file I found....
$result = mysql_query("SELECT * FROM `grpgusers` ORDER BY `lastactive` DESC");
while($line = mysql_fetch_array($result, MYSQL_ASSOC)) {
$secondsago = time()-$line['lastactive'];
if ($secondsago > 2592000) {
$user_online = new User($line['id']);
$result2 = mysql_query("DELETE FROM `grpgusers` WHERE `id`='".$user_online->id."'");
}
}
Its not in the cron btw which is if you bothered to read the README.txt is called rollover.php