Diners Club Club Rewards - Montage card

Hi all, anyone know if Montage cardholders are allowed access to the airline lounges at Newark and Miami ??? Do you have to have a ticket with the airline that is managing the lounge ???

Thanks.

http://www.dinersclub.com/en/DCIHome/airportlounge.jhtml;jsessionid=WFAY0LOBBR4PNKN2PJQ SFFNJXR3F0IV3