C++ :: Implement Source Code That Turns Numbers Into English Text

I have been working on the same problem as mp252 from an earlier thread and 4 days later, I appear to have it working. Mine only goes from 0-9999 though as I must move on!

Code:
#include <iostream>
#include <string>
int getThousands(int number);
int getHundreds(int number);
int getTens(int number);
int getUnits(int number);
void printNumber(int number);

[Code]......

I had a scrap of paper like a mad scientist trying to find relationships between numbers and the values that they would return through my functions. This is how I arrived at the conditions of my if statements in 'void printNumber'.

I have seen other code that allows a greater range but I can't quite follow it (yet):

C++ code by fun2code - 67 lines - codepad