Howtogeek posted a tutorial about bringing the Office 2003 Menus and Toolbars Back in Office 2010
Are you having trouble getting used to the Ribbon interface in Office 2010? Here's how you can roll back the clock a bit and bring back the familiar menus and toolbars from 2003.Bring Office 2003 Menus Back to 2010 with UBitMenu
The Office 2007 Ribbon was both praised and criticized. While many users felt they were more productive with the new interface, others felt frustrated searching for commands they had memorized in older versions of Office. Now, with Office 2010, the ribbon interface has been brought to every app in the Office suite, and is integrated into many newer programs from Microsoft.
If you're moving from Office 2003, using UBitMenu allows you to add the old familiar menus back along with the new Ribbon interface for an easier learning curve. Also, with the customizability of Office 2010, we can strip away the extra Ribbon tabs to make it more like 2003.