Vista - A problem about Speech Recognition:

I'm a multilingual, I deal with lots of Chinese, Japanese,English and French
emails in my everyday life. I found that I can dictate the Chinese email
very well on my Vista. Since Speech Recognition is available in English
(U.S.), English (U.K.), German (Germany), French (France), Spanish (Spain),
Japanese, Chinese (Traditional), and Chinese (Simplified), I want to set up
all the languages that I can speak on my PC, Could anyone please tell me how
to
set up the newest French and Japanese Speech Recognition?

Thanks a million!