Hi Michael ,
Thanks for contacting us.
It's possible that there is some white space in the code. Have you typed in admin for the user name and admin for the password? When you set-up the TIU site, can you confirm that the database exists in the App_Data folder? If you are using SQL Express, then it should be there. Please confirm that the ASP.NET worker process has read/write permissions on the App_Data folder, since it's possible Sitefinity can't access the database to login. If you are using Windows Server 2003 or 2008, ensure that the Network service account has the read/write permissions on that folder.
If the problem persists, please let us know.
the Telerik team
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