AdWords GamePlan shows step-by-step instructions for the new interface.

Main Menu items have moved from the top of the AdWords page to the left column.
Settings, Ad Groups and Ads pages still contain all the selections we need to precisely target customers, but some have moved. GamePlan shows where to find them.
AdWords has "optimized" some bids, ads, daily spend without asking your permission. These optimizations can dramatically increase costs. GamePlan shows warnings, when you need to change them.