I finally purchased a Pro account on Flickr. All of my 644 photos are now visible, not just the most recent 200.
I can also make more than two photosets. Many, many sets shall I make.
When I first joined Flickr, I believed that “pro” next to your name meant that you really were a working photographer, and that you had to supply some sort of proof of your professional status along with your application.
The truth is that entry into the realm of professional photography requires only $24.95, payable via PayPal. Maybe I should update my business card now?