Well what you need is this:
To do a complete job of moving to the Release of Visual Studio 2008 SP1 you will need to remove the runtime by:
Opening a Visual Studio 2008 Command Prompt (with Run as Administrator if on Vista) change to the folder where you unzipped the last Dynamic Data Runtime release you installed and run the Uninstall.cmd batch file.
Visual Studio 2008 Service Pack Preparation Tool This removes the Bata 1 of SP1 and cleans up a bit.
Visual Studio 2008 SP1 (also includes .NET 3.5 SP1) This installs the release version