It shows her logging into a secret "Beta Team Access Only" website and testing a new game called Rollerscape!
Well we've just discovered what website she was one! YOU CAN ACCESS IT TOO!
Go to the "Reviewed by You: Earning Stamps" posts on the What's New blog, scroll down, and click the word "Team".
It takes you to the Beta Team website, which is http://authorized.ClubPenguin.com/.
Enter your penguin's name and password, then click "Login".
Wa-la! Your in! Go explore around the site and see what you can find.
Click here for a full Beta Team guide!