It's pretty Simple, just follow these Steps:-
1- Go to any German Proxy such as: http://www.4proxy.de
2- Put this in the Box: http://www.stardoll.com/en/contest/view.php?id=468
3- Press enter or click browse.
4- Log in
5- Put this one instead: http://www.stardoll.com/en/contest/finish.php?id=468
6- You will have it in your suite.