I contacted BrightQube and the answer from BrightQube is that they have not updated the feed from Dreamstime with recent submission. (The image in the example that I gave them was accepted by DT in March 08) Also Dreamstime recently modified their API for them to receive their information, and they have been working to update their  system with these modification. They will start receiving the new images addition in the coming weeks. There is asignificant number of images on DT that they have yet to add to BrightQuebe, and  they are excited with their new capability to bring in these additional images. They will try to notify me when they think that all images from DT are included in the inventory of BrightQube.

They seem to have most of my best images from DT. I have no idea how to track sales made there on the DT site. If indeed that's possible. I haven't bothered to ask DT yet because there are so many of these third party sellers out there for the various main sites it would probably be impossible to track them all. I guess we just assume that we are getting paid.