This is a theme that reminds you of the pre-release Windows (codename) Longhorn that made people drool. It has a dark but appealing feel to it.

The pack includes two styles for the windows theme, one without the search bar in the start menu. This has an effect on the color of search bars in windows explorer windows (it gives them a black background to be specific) that makes it hard for some people to use, so the default version with the search bar is included. Along with that is included a similar theme for the Mozilla Firefox browser which makes it look as if it is bundled with windows. Very nicely implemented I must say, and I like the Firefox theme even more than the Windows one. It also includes a script required for getting the toolbar background right, with instructions for installation in case you face any problem.

Being an updated version, it fixes some significant bugs including text colour (changed to white) and search panes (no gray colour), and new icons for the start menu. I would give it a rating of 8/10 (thanks to the Firefox bonus).
Longhorn Duo by ~paradox31102
Download: Longhorn Duo Vista Theme