Does anybody else have a problem with uploading bidyo from Dailymotion or Vimeo to Fanpop, or is it just me?

I just don't get it. Every single video that I try to post just won't play! There's nothing wrong with the url, it's something else. So, I was wondering how can I upload a video from Dailymotion or Vimeo to Fanpop. When I try posting a video from Vimeo, it always ends up in the iugnay section instead, but at least it's OK to play & watch the video, but with Dailymotion no such luck. So, what's the catch? What am I doing wrong? Is the upload from Dailymotion only available on desktop site, or perhaps Fanpop is somehow blocking all of my uploads? Am I the only one who has the exact same problem with Vimeo & Dailymotion videos? It looks like only the YouTube bidyo actually work on Fanpop, anything else just won't play. Sometimes even the YT url won't work, so I have to find another url, but it usually works, unlike Vimeo & Dailymotion. Are YouTube & Fanpop somehow connected to each other, or what? I would really like to know the answer to this tanong of mine. Thank you so much in advance for your answers.