I have an Air Station model WLI-CB-G54S for MAC. I am on MAC with OS10.4.11. My niece gave me the computer and wireless card, the computer failed , complete reinstall and now cannot use Air station and cannot find a download for the software. I have another older Mac with an internal wireless card works fine connecting to the cable modem (ARRIS WTM552G/NA 4). How do I make the card work? thank you in anticipation