First log-in to stardoll and under your me-doll's face go to "my account" and then go to "account settings"..
there your User-id must be written. Copy it on some paper or anything!
Now copy and paste his Url on your browser- http://www.simple.co.uk/stardoll/?u=(Your User-id) A page will load and you have to scroll down and fill the boxes.. You can use fake information. Now click on submit and then log-in to stardoll! Its there in your suite!