Once you have the ASP.NET 3.5 Extensions CTP release installed, you can use VS 2008 or the free Visual Web Developer 2008 Express to create a new Web Site or Web Application Project that has the ASP.NET dynamic data support enabled:

Figure 2

This will create a new web-site you can use that has some default template files in them, along with CSS style-sheets you can use to customize the look and feel of them:

Figure 3