can see them now (of course)
I ran into similar problems with stuff I uploaded to my free webspace. These providers are not into this remote linking stuff, but if you uploaded the things, they will be in your cache and you can see the linked images, whereas others can not. Sometimes the problem can be solved by copying the link in a new window, thereby going directly to the provider's webspace and not via remote link. The image will load into the cache and you can see the remotely linked version as well. The moral: things are complicated.