Hi Chris
Try adding the following to the Custom CSS field of your templates parameters...
.slideshowcontainer {
max-width:100%;
}
#container_slideshow .wrapper960 {
width:100%;
}
#body_bg {
box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.2);
}
#container_slideshow {
padding:0px;
}
The images not appearing could be a slideshow issue rather than a template issue. To confirm this could I ask you to try the slideshow using one of the default Joomla templates (Beez) and see if the problems persists? If so may I suggest contacting the developer of the slideshow.
Ciarán