Just updating the web site, specifically the page Microsoft Visual Studio Team System Code Name "Rosario" and somebody pointed we removed the link to the documentation.
The reason we removed it is the documentation is included in the CTP virtual image.
To get the docs:
1. Start the image.
2. Go to the start menu.
3. Click All Programs.
4. Click Microsoft Visual Studio 2008
5. Click Microsoft Visual Studio 2008 Documentation.