For the time being, you can see the whole process (8 videos, more than 1h in total) in this playlist from youtube: http://www.youtube.com/playlist?list=PLYkFSuLveZe4UxzCgMKvEDJL7YCjEM41R
And the 2 interfaces created, each one in a diferent language, here:
MultilingualTracker | MultilingualForm | Multilingual DB | MultilingualDB