Backup Exec for Windows Servers - Microsoft SQL Server and SQL Express

Hi,

When the environment check runs it throws up a warning saying:

An instance of Microsoft SQL 2000 was found that is not updated to Service Pack 3a.

An instance of Microsoft SQL Server was found that is not updated to the correct service pack. Using this SQL Server instance with Backup Exec may cause errors. To install Backup Exec successfully, upgrade this SQL Server to Service Pack 3a, or select another instance.

I am trying to install it on a Win 2008 R2 server running SQL Server 2008 Express. 

What can be done to rectify this error message?

Kind Regards

Johan