If you're installing the latest release of SQL Server 2008, you'll probably immediately start looking for the Surface Area Configuration (SAC) tool. It's been removed, and replaced with new Policies that we ship with the Policy Based Management feature. You can read all about that here.
So why do it this way? Well, what this does is give you a single location, tool, and methodology to work with to set and control your system's state. Sure, it's a change, and I know we all hate change, but it's a good one - a single tool to do the same kinds of things is far better than lots of tools to do the same thing. So check out that link and try it on your test system today.