[FoxtrotGolfXray 5.0]

To post the images from Flicker or Imgur, are you using the IMG]http://test[/Img tags (available by pressing the art frame icon on the posting thread header, has a yellow background with a mountain in sun on it, above tags have opening and closing square brackets removed so you can actually see the tsgs) and placing your url in between them, as per above test example?

I've posted images yesterday using this method without any issues at all.

I haven't tried using the site attachment method in ages, but just tried and it said it failed but that could have been because the file was too large.

Hope that helps.