sim memory locations

Hi
i have successfully built a sim card interface using a PIC microcontroller and visual basic, but to complete my project which is due in like..... 3 days i have to be able to download at least some of the phone book on to the computer, but the problem is i dont know where on the sim card is the phone book,

i thought it might be at location 3F04h but i get an error from the sim card saying file id not found as donated by the trailer 9404h,

does anyone know anyone who would know where on the chip the public memory can be accessed cheers