TOPIC: Demo won't work for me

hi there
Tried to look at the demo on installation but it won't progress further than the arrow.
I have installed it but can not seem to work out how to get it showing up on the page that I want.
I went through the menu system but it is still not showing.
Please help as soon as you can, thank you very much.
Mel

!jocomment will not show in the menu.
You should a commenting box under articles.
Go in the backend and configure which sections and categories !jocomment should show.