Home slider does not work

Hello there!!! I did everything that was written in the documentation. When i preview my home page i get http://www.siram.ca/?page_id=10&preview=true
and the slider doesn’t appear. I only see the text that was entered previously.
And if i go on my home page http://www.siram.ca/ , what i see is a “hello world!” page. What am i doing wrong?

Thanks for your help!