Thanks to Michael French who shared the link to the following interactive tools let you click on a simulation of Microsoft Office Word, Excel, Access and Outlook – on whatever task you know how to do in the 2003 version – and then the online tool shows you how to do the same in the 2007 version.
Publisher 2007 Help guides – http://office.microsoft.com/en-us/publisher-help/publisher-help-and-how-to-FX101817066.aspx
For a whole series of video tutorials on using Microsoft Office you might also find the following video tutorials helpful: