Basic, Perhaps Silly SQLServer 2005 Question

I've previously used version 7 and 2000.

I've recently started to learn ASP.net. I've installed
Visual Web Developer 2005 Express and this includes
SQLServer 2005 in the installation. The task manager
and and the list of services definitely show I've got
SQLServer running on my computer.

Here's the problem: how do I actually use it? I can't
find any tools to create and access databases.

I've tried installing the Enterprise Manager from 2000
but this gives me an error message saying I must use the 2005
tools to connect.

So, is there an Enterprise Manager (or similar) for 2005?
Where do I find it?