What is the Data View?
Data View Web Part is the primary component used for data presentation when building data-driven Web sites using FrontPage 2003/Sharepoint Designer and Windows SharePoint Services.
Data Binding:
When working with a Windows SharePoint Services-based site, FrontPage 2003 allows live views of customer data from a variety of different sources:
· SharePoint Services-based Lists and Libraries
· OLEDB data sources, including Microsoft SQL Server
· XML Web Services
· XML Files
In this Interaktive Flash you can see how to use the Data View Web Part under MOSS 2007
click here for the 
Demo