I am having issue testing this out on localhost.
I went ahead and changed the two lines in integration.php, removing:
arrowchat_status.session_time > (" . time() . " - " . $online_timeout . " - 60)
&
#arrowchat_userslist_offline{}
However, the "offline" user doesn't show themselves after idle period hit and turns to offline status.
Maybe I am missing something.. please help.