1) Most of the images of Achilles' hard drive initially pointed to other images that were temporary. I've mostly seen these in the request forum where a contributor uploaded an image in response to a request and showed the temporary URL to the requester to see if the item in the queue met what was wanted. Dreamstime seems to have made a change recently that no longer allows the temporary images to be shown. These have been replaced with the hard drive image. An example thread is: Page 3 of Opposites and Prepositions. Another example is E Book trilogy covers, but the new replacement images are others besides the hard drive.
2) For some reason, the forum's insert image feature does not work for the full URL for all images. On this thread I posted three images. The 2nd image (the one of the periodic table) would not link to the desired picture and instead showed the image of the lamb with no hyperlink. I tried again with just that image in a separate post, and I got the error about not being able to locate the image. To get around this problem, I re-inserted the image by just using the image number instead of using the full URL. This corrected the problem.