You shouldn't open multiple topics for one problem. Also try to be a bit more friendly and less insulting to find more people who are willing to help. Less curse words for example could be helpful.
Anyway, I'm guessing here, since I never tried to play such a multi rom game: simply renaming/copying the save files after completing one chapter could work, e.g. from "...chapter1.srm" to "...chapter2.srm". Or "xyz.state", depending on whether you are using built-in save games or emulator save states.
