People in the US get this Beneath the Blue poster and Disney Shake it Up t-shirt just for logging in.
If you are not from the US you will need a web proxy. Try dontfilter.us/, webwarper.net, proxoin.com
Put this in the URL bar and hit go/ browse
Log off the proxy and into regular Stardoll.
The poster will be in a box in front of your closet, and the shirt will be in a bag to the right of it.