I want to translate into Spanish, questions

Hi! I would like to begin with the spanish translation. I installed everything and all it's ok about http://www.slightlymagic.net/wiki/Forge ... anslations but I really don't want to touch other files, because I'm not an great expert. I would like, if possible get all message.id in English first, in the en-US.properties file, then I help in translate all those text strings (respecting variables) in Spanish. I look forward to your response. Greetings!