AdventureWorks for Denali is available now and can be downloaded from the below link.
http://msftdbprodsamples.codeplex.com/releases/view/55330
Note:
- 1. These databases cannot be installed on any version of SQL Server other than SQL Server code-named "Denali" CTP1.
- Microsoft SQL Server "Denali" CTP1 must be installed.
- Full-Text Search must be enabled