change of language for Office XP

[byba]

I am working for Italian company in New York. Everyone
speaks Italian and no one has troubles with using Office
in Italian language. I do. I need to change the language
of menu, help and all the appearance to English. How
could I possibly do it. If I go to Microsoft Office Tools
in 'programs', then to Microsoft Office language
settings, it doesn't work for me.

Thanks,
Byba