If you go under "Manage -> Profiles" in the top navigation and then click on the name of the profile you wish to edit, it will load the profile.
Then if you click the "Edit" tab you will have the ability to change your profile data.
Afterward you click the "Save Personal Changes" button and your changes will be saved.

Please watch the linked video for a step by step tutorial on how to edit your profile information including your address information, dob, and uploading a picture.