If you are from UK click HERE, leave all the boxes blank and click 'Enter competition'. The horse should be in your suite.
If you are from anywhere else, you'll have to use a web proxy, go to proxay.co.uk or docoja.com/blue/ or fishproxy.com or hidemeproxy.net
Type this into the URL bar:
http://www.stardoll.com/en/contest/finish.php?id=3270
Hit Enter and log into Stardoll. Leave all the boxes blank and click 'Enter competition'. When the page loads, you can leave the proxy. The horse should be in your suite.
