[xwiki-users] Localization configuration in xwiki?

i went through http://platform.xwiki.org/xwiki/bin/view/Features/I18N. Basically i want to set the set the language of my wiki as per the value of paramter language(as explained about appending the language=zz in in the link ) but it only convert the label language not the acyual content. For example i created the page Mypage and put the content as This is my first page(default language is english). But now if i change the default language to french only lablels like comments (to commentaires), history(to historique), Add(to Creer) get changed not the page name and content inside it. Still i see the contant as This is my first page.Though i was expecting it in french. How to configure so that we can change the page name and its content too when changing the default language?