Please can you help i am trying to get train information. travelling from split to dubrovnick or coach timetable and prices. the rail site hrv is not in english.  

The coach timetables have been updated and published under the transportation section. I will also post the prices for the respective bus conections.
The closest train station to Dubrovnik is Split or Ploce. Split is better because the bus and boat conections to Dubrovnik have daily departures.

Orsat

I looked under the transportation section, but I still can't find any prices posted for buses between Dubrovnik and Split. It doesn't help that none of the Croatian coach companies seem to post prices on their websites. It seems to be the great Croatian travel mystery of the internet.