how come the disqus plugin is not working?

Hi!

I've recently installed the disqus plugin for the comment form and I have customized it with borders and no images on the commentator part.

On the dashboard it is working, but on the upfront side, all my customizations are not showing and it's not working. Here's the link:
http://talkaboutroses.com/what-do-yellow-roses-mean/ . I want the disqus theme because it is very common.

if disqus is not working, could you please advice me another plugin which works on upfront, and has the same customization properties I have just mentioned (with border, no commentator image)?

thank you!