How do I change my screen name to my first and last name on AIM?

I once got an IM asking me if I wanted to add in my first and last name to AIM to make it easier for my friends to find me. I did it on AIM Express, but now that I've got AIM 7.2, I show up as my screen name rather than my real name.How do I change my screen name to my first and last name on AIM?
Go to http://x.aim.com/aimfullname/protected/

first and last name.

and done!