[ahbhu]

hi... im a newbie with cwcheats and psp purchased a psp slim last january. i have a cfw3.71m33-4. hope somebody can help me with my questions.

1) why are some of the codes not working? like daxter, prince of persia, gow and etc.
2) is there any way ti fix this?
3) is this because of the firmware?

thanks.