If you're from France click here and join the club. Then invite a friend to join the club and click here to visit the Sims 3 official site.
Then you will receive the graduation gift and pool.
If you want to get the graduation gift and you're not from France, then go to this web proxy:
Then copy and paste:
into the proxy's url.
Log into Stardoll and copy and paste this:
into the proxy's url
And to receive the white dress you must go to the Official Sims 3 site. Click on the image that you see above when you get to the club. It will redirect you to the official site.