Sometimes you just have to be patient. I've had my share of problems with the uploading but either it's a file that's not recognized be the Caedes server or maybe the times were odd. Either way you'll be able to soon enough.
Not long after joining Caedes, I tried to upload an image and a page advised me that there had to be a 24 hour gap between images, and that Caedes Cadres could upload 2 images in that time.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." Bertrand Russell