Editing your profile:

Login to the site first, if you haven't created a user account yet, please register from the home page.
Next, go to the forum page and click on My Profile.

You should see two sets of menus on the left: Personal Info; and Forum Settings.
The links under Personal Info let you change your password and email address or upload a picture to use for your avatar.
The links in the Forum Settings section allow you to setup the additional info in your profile and monitor your subscriptions and favourites.