Hey Justi.
I think you mean
this screenshot. No problem. First of all,
KDE-look is your best friend. So go there (or anywhere) and grab yourself a cool wallpaper. I think you'll like a similar one called "
Grey Matrix". Instructions for changing your background wallpaper are all over, but in short, right-click on the desktop and then "configure desktop".
Next, move your taskbar up to the top. (click on your taskbar and choose configure). Looks like they also changed the width and colours of the taskbar as well (also available under configure). I also notice their taskbar is semi-transparent. You can do that on some themes and styles (more on that below).
One of the coolest effects is the Konsole (command window) on the left half of the page. You'll notice its transparent. To do this, load your command prompt, select settings --> "configure console" then select the "Schema" tab and choose a transparent schema.
Lastly, it looks like they changed the theme and or styles of their KDE desktop. Configuration --> KDE --> Look'n Feel --> styles/themes. Themes and styles are available from KDE-look.org, along with instructions to install and use them.
Also, if you really want the peak of "eyecandy" check out the "Karamba" and "Superkaramba" projects on KDE-look. If compiling from the source intimidates you, look for the RPMs.
Good luck!