I've written two tutorials on my website for anyone who is interested, or who has friends who may be interested, or who HATES EXPLAINING IT TO HIS/HER FRIENDS OVER AND OVER AGAIN.
Not really sure where to post this, but it's totally cool, trust me. [Mod Edit: Moved to Tokyo Tech - Computers and Internet.]
http://www.puargs.net/?page_id=34 Enabling foreign languages in Windows
http://www.puargs.net/?page_id=47 Using the language bar