Install SQL Server 2005 Express again?

When I installed VB 2005 Express, the installation process also downloaded and installed:

1) .NET Framework 2.0
2) MSDN 2005 Express
3) SQL Server 2005 Express

However, it seems to me that it has installed a very limited version of SQL Server 2005 Express! All that the installation did was to put just the configuration shortcuts for SQL Server 2005 Express in my Start Menu.

I have also separately downloaded SQL Server 2005 Express.Should I install it over what is already installed? Do I need to do anything in addition to simply installing it?

TIA

[639 byte] By [Gunny] at [2007-12-17]