Anthony,
MikeInTX is correct, the images are huge and just take a long time to download and display. If you don't have a high-speed connection it will take a while to get them. I had the same problem initially, but then decided to just sit back and wait. After about 5 minutes the images started appearing on the screen.
IMHO folks should NOT directly post such large images as it really impacts those without fast connections. The best way to do it is to upload a smaller image with a link to the off-site full-size image so those who want to see it in its full glory can do so. It's much more user friendly to do it this way. It's called "netiquette"...