The root URL of your demo is :
demo.smartaddons.com/templates/joomla3/sj-plus/

If i click on an image from you homepage slideshow, i still at the homepage (i mean the HOME menu button still active, the slideshow is here, etc. ?

The URL has changed : demo.smartaddons.com/templates/joomla3/sj-plus/index.php/86-slide-show/135-adipiscing-neque-et-pulvinar-orci-tellus-dolor-lacus-aenean-sapien
but i'm always at the homepage

Dear pako69,

If you want the articles don't show in home page, please create a menu item assign to slideshow folder.

Thanks