Thank you for your reply. When I click on the link you provided, I'm given a page into which I'm asked to provide my Email Address and Order Number.
But, again, this is therefore tied to a specific PDF file. We are told, "If a title you purchased is not listed, click here to log in again with your latest order number." Sheesh. And, I note that a password is not being requested to get the PDF file. I guess the combination of email address and order number is secure enough.
But, still, no joy for the SitePoint fans who just want to go to ONE page to see their membership stats, their courses, their available downloads, their preferences, etc.
Of all websites to have a major website usability problem, I wouldn't have thought it would be SitePoint. Please SitePoint: give us a dashboard!