When you use the Windows server 2008 as a backend server, you have little use for a nice graphical UI of the computer. But, when you start using it as a desktop system (maybe due to development requirements), you kind of miss the nice looking UI you’ve become used to from Windows 7.
Fear no more, it is almost possible out-of-the-box. By selecting Features –> Add Feature –> Desktop Experience, you can gain a similar UI on Windows 2008 Server.
Update: You do of-course need to start the Themes-service in Windows Services to see the effect.