[Suiko Jin]

I am confused on step three. I have read the little diff sheets and the color charts but I don't get alot of it. Like on the yellow/changed line things.... do I change the code all together? Like on the index diff code chart on line 317, do I change that whole first yellow section on the left to the code on the right? or do I add the code on the right with it? Bah... very confusing since some of the code on other lines that it does this with seems to be exactly the same.