Change fluxbuntu locale

First of all, congratulations, Fluxbuntu looks great !

I've just installed it selecting "spanish" as the installer language. Language support for spanish has been downloaded and installed (for example, i can see that spellchek is available for spanish in Openoffice), but all apps' menus are in english: the web browser, openoffice itself, fluxbox menus...

I suppose that it won't take me a long time to translate fluxbox menus or to set Kazehakase to spanish (it must support firefox locales), but i don't know how to set openoffice in spanish... Is there somewhere i can set the locale for the whole system ?

Thanks for the help.