questions about pokemon files (translations)

ok, im sorry if i come off sounding like an ass but im wanting to know what files in the roms are the storyline and main files for these pokemon games:Pokemon heartgold & Soulsilver (both U & J)
Pokemon Platinum (both U & J)Post Merge: [time]1286830071[/time]
does anyone know what im talking about??i know some people do but i haven't gotten a response from them though