I searched for @EXPORT and @EXPORT arrays but they are not present in the module.... I am wondering if this is possible since I only got the *.pm files not the other ones required to build the module
Well of course I tried not guessed.... it says that the function is not defined.
Please reduce your code to the smallest self-contained code that still reproduces your problem. The main program and the "changed" module should each not be above 20 lines.
Also tell us how things fail for you, as that helps us see how you are trying to call the new function.