Over 1000 texture photos is about right. The "thousands" number includes all images and presets, such as HDRI images (they appear in a different dialog), and texture presets and so on, which I believe brings the total to the ~3,000 range if I remember correctly.
The "new resources" number doesn't necessarily reflect the total that you have. If you had installed the demo while the resource server was working, for example, it probably downloaded some of them, and then it may have downloaded the rest after the server was back up again. You're probably set, but if you thought you were missing some you could post a screenshot of a specific photo category and someone could spot-check that it's showing all the expected thumbnails in that category.