Here is a short list of links to help you get adjusted or get the menu bar back.
Get The Menu Back:
Download UbitMenu – Install this to get your Office 2003 menus in Office 2007/2010 programs (Outlook, Word, Excel, Powerpoint).
To Learn the Ribbon:
Microsoft’s Tour of Outlook 2010 (learn from video) – Quick video tour of the ribbon feature.
Ribbon Hero Game from Microsoft (learn by playing) – Cool game to learn about the ribbon.
Ribbon Customizer (customize) – Guide to customizing ribbon.