To be more specific, how do you get the script in Wordpad/Notepad Format, then put it into the game after you translate it? Sorry. I'm REALLY new to this, but I want to try it.
Read some of the stuff in the links kaioshin provided. They'll fill in the blanks. But the pure basics:
1) Figure out how the game stores text. Most of the time this is in a custom scheme (not ascii or unicode like your computer uses). You'll also need to figure out how the control codes work (line end, paragraph end, and sometimes other stuff like character portraits, line end, paragraph end, ect).
2) Create a table file.
3) Find the pointer table. Pointer tables tell the game where all the text is located and will allow you to change string lengths.
4) Dump the text either using a custom coded dumper or one of the generic utilities available on the utilities page here.
5) Find someone to translate the text.
6) Edit the font to add letters/etc for what ever language you translated the text into.
7) Create a table for the new letters.
Reinsert and update the pointer table.