3X4 SPARKFUN KEYPAD MAPPING

Hello, I am having some problems with the keypad configuration and the library… i downloaded the lib and tried to change the row/column mapping and i’m still having problems…
I have the 3x4 keypad from spark fun, if anyone can specific what i should change, like what should change in the .cpp file and the .h file… i tried compiling the .cpp file i downloaded for arduino and got an error…i added the pull up resistors and everything… If you can be a little specific, or even post the modified codes and keypad-to-arduino numbered mapping that would be great…
PS: my C programming sucks, guess that’s y it’s kinda hard to read he codes…
and if any one has the codes to like using the keypad as a security system for like a lock or something, that would be greatly appreciated

gratefully,
kwesi