Hooper, try this.
In online.php, find
Code:
$loggedins=$DB_site->query("SELECT DISTINCT session.userid,username,invisible,location
FROM session
LEFT JOIN user ON (user.userid=session.userid)
WHERE session.userid>0 AND session.lastactivity>$datecut
ORDER BY invisible, username");
Replace it with
Code:
$loggedins=$DB_site->query("SELECT DISTINCT username,session.userid,invisible,location FROM session
LEFT JOIN user ON (user.userid=session.userid)
WHERE session.userid>0 AND session.lastactivity>$datecut
ORDER BY invisible, username");