Resolved Forza 3 Modding Problem

when i mod forza 3's credits from 0 to 10, and i save the file it says "saved rehashed and resigned" or something like that.. but when i reopen then file nothing has changed, why is this happenning?
i have downloaded the official program with this websites link and i also have downloaded KV.bin
what is wrong?

also, i didnt even need kv.bin last time i did this, why does the program all of a sudden need it?

 

You have an identical thread here, http://www.xpgamesaves.com/topic/41741-forza-3-modding-problem/

please refrain from creating duplicate threads asking for help on the same subject.. locked and moved.