I haven't quite got the hang of taking pictures of my minis yet. But almost everytime when I post an image it is removed. Is there some sort of lowest quality that all images need to reach or they will be removed?
I actually find it easier to upload my pics to a photobucket account, then just copy and paste the link to the photo here. Might help solve your problem.
Maybe you need to process the images before posting them. Only filter I know of is on the size (max.1.4m) and format (JPEG). You can used the time to crop and auto-tone auto-contrast of your camera is lacking.