Did you have previously installed version of SDK on your system.If so first uninstall it, delete the ATI Stream Folder(which in some cases is not deleted by uninstall) from my documents directory.
Then you can try to install samples using custom installation or you can find a separate setup for installing samples at C:\ATI\SUPPORT\streamsdk_2-2\Packages\Apps.
Can you also tell your system configuration and which SDK and catalyst you have installed in your system?
Nope, no previous installation. I simply used the express installation on Windows 7.
Is there a web site that has the sample code?
download SDK for linux 32bit extract it and you get the source code of examples. but of course no solutions files for visual studio and such.
Did you tried finding the setup for samples installation at the link i mentioned in the previous post?
Anyhow nous solution is also good.
Mention the following things about your system:CPU,GPU,SDK,DRIVER.