[Zope] internationalization and localization

hi, i have installed Zope 2.7.1 and i would like to make a some pages available in different languages using TAL statement. On google i find that this is possible in Zope 3 using i18n namespaces, however i would like to use it in a stable environment . Do you know if a backport has been done for it ? If no, what should i look for to have similar features ? Many thanks to all Samuele