Ps2 Sbox Usb Question

[fasterthenmost]

i have had my SBOX usb mod for a few months now. ea games were not a problem at first but now the ones just recently released will not play. I have burn the sims like 5 times not luck patched not patched no luck. i was told to try to load it with codes and to just make up a code but i have no idea how to do that with my gameshark2. I have the kalisto rip of the sims and high heat baseball both will not work. if anyone can shed some light i would appreciate it.