Stefan Boonstra on "[Plugin: Slideshow] How do I make the slider appear on my website?"

You're not only settings the title and the subtitle to not display, but you're also setting #featured invisible. Do it like so, and it will work:

#featured .featured-title,
#featured .featured-subtitle {
display:none;
}

But why don't you just delete the title and description from your page or theme?

To display the slideshow instead of the #featured box, you should go into your theme and replace the #featured box with the slideshow's PHP function.