Yes true it musnt be hard for a real coder. Its one of my first "modified code" ever, but i manage to expand my knowledge as long as i can :p
I'm actually working to add the RIN menu on DoomPSP, really hard thing for a real noob like me but it learn me a lot. I'm also trying to add menu to the neogeoCD emulator (and cpu speed trick) but for now i cant compile the unzip.c file ... strange and bad.
(Sorry for my poor english..)