We are using the Drupal.org system to log in.
If you're already logged in on Drupal .org then go and update your profile page and you are done.
* Go to the login page and this will redirect you to the Drupal.org login page.
Log in there with your Drupal.org account info and you'll be sent back here.
(If you don't have a Drupal.org account, well then what are you waiting for? Create one...)
* Then you can go and update your profile page.