yup, pictures on site seem to be off right now.
but that's kinda scary from an information flow perspective if your profile shot is coming from another forum...
so right now, yes we can edit profiles but i don't think directly edit photos.
@gabby & MC, the avatars are coming from en.gravatar.com. Whenever you sign up for something like a wordpress account, that avatar follows you where ever it's supported. Right click on any profile pic you see here, view the properties, and you'll see a link that starts out something like "http://1.gravatar.com/avatar".