Installing SQL Server 2005 on Vista?

[Stella Richards]

Hi,

When I try to install SQL Server 2005 on a Windows Vista machine, I get the warning message:

Microsoft Internet Information Services (IIS) is either not installed or is disabled. IIS is required by some SQL Server features. Without IIS, some SQL Server features will not be available for installation. To install all SQL Server features, install IIS from Add or Remove Programs in Control Panel or enable the IIS service through the Control Panel if it is already installed, and then run SQL Server Setup again. For a list of features that depend on IIS, see Features Supported by Editions of SQL Server in Books Online.

I have already enabled IIS, and when I enter http://localhost/ in internet explorer I get the IIS 7 splash page. Any ideas??