Is it Fun card (purple wafer card) , pic card(gold wafer card) or PIC2 card (silver wafer card)
The fun card uses Atmel chip while the pic card uses PIC chip inside.
there are numerous types of cards out there and you can't interface it unless you know whats in it.
Mainly you need to know the microcontroller type and the size of eeprom on the card.
The most comon ones are Pic cards and Fun cards.
Regards
Mahmood