gridrunner

Hi. I just upgraded to fs x and was using the old 3 vers of FSUIPC. my question here is: Do I need to repurchase a new set of keys to work with FS X as when I try the keys with my registration of the old version of FSUIPC it just won't accept it nor will WIDEFS with its registration key codes. Yes I did purchase the code originally. They are authentic and were puchased through Simmarket in my own name. Thank you in advance. Regards,