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Your content stays the same, so don't worry about that. It is just re-jigged to give you a different layout and more content. Your updates remain live until you finish editing. It also allows you to go through and update your past, as well as your current information.
Your work and education details are on the left, along with your 'living' status. It uses Bing Maps throughout (after Microsoft's investing in Facebook last year). Your remaining content can be found on the right hand side.