The old site search from Google needs to be updated. Use the Search at the Upper Right, or use What's New in the center - it has a drop down arrow. You will need to change your Favorits by right click mouse and clicking favorites. Many of the posts in How to Use This Web Site are old so the links may or may not work. I have one hell of a lot of work to do!
When I started my subscriber gallery four years ago, the first photo I uploaded automatically became the avatar by my name. Maybe a couple years ago it changed to another one of my photos and has been like that ever since. I never had anything to do with it. I think Harry probably does it himself.