If you are looking to add a custom photo to your Avatar (under your name) you must become a supporting member to have that privilege. Take a closer look at this thread it explains how to become one and the benefits you can enjoy as a supporting member. There is stock Avatars also that you can use for free.
Hope you might consider joining/supporting our happy SSR family where we learn from each other and have fun sharing photos, events and other great information. :flag