Not sure if I understand your problem correctly, but have you tried the following?

• Click the File button on the ribbon to get to the backstage view
• Click the Options button
• Click the Language button from the list in the left pane
• In the "Choose Display and Help Languages" section (bottom half), do you see English in the lists? If so, move it to the top. If not, you will need to click the link at the very bottom, which brings you here: http://office.microsoft.com/en-us/language/. Select your language, and you will have two options: 1) buy the language pack for $25, or 2) download the ScreenTip Language for free, which should at least display the English translations when you hover over a button/tab/etc.

Hope that helps!