All the link did was point out that, in VS 2008 (including Express Editions) you can right-click on the "using" declarations at the top of your source file, and you have options to reorder them and/or remove unused "using" declarations.
They took a page from SharpDevelop...
Does the full edition of Visual Studio have support for building regression test suites, the way SharpDevelop has? That's something I've been missing in the Express Edition.