At users@openoffice.org, I see several European/American, who can't read Japanese, often ask the list how to use Japanese with ooo or how to input Japanese.
It is not a problem with ooo, but it is a problem with their platform, language environment, input method and installed fonts.
CJK solutions here:
http://openoffice-org.hp.infoseek.co.jp/
If you get these requirements, you can input any language with ooo since ooo has got spadmin.
Now do they know how to type Japanese?
I didn't know how to type Chinese and Korean.
I have just learnt how to type "red" in Chinese and Korean from:
http://www.apac.redhat.com/iiimftest/testing-guide/s1-testcase-object4.html