Okay, it seems that there is not a file size limit, but instead you can simply not upload pictures onto your ftp folder, or at least not of a certain file size. I can't upload pictures that are over 1MB, but I can upload pictures that are under that. This sucks, if this continues I'm probably going to get my own server (and not someone elses server if I'm going to pay for it then it's going to be mine and mine alone) as soon as I can afford one.