In content-slider.php, change
<li><div class="content_left"><h2 style="color:#fff;"><a href="<?php the_permalink();?>"><?php the_title();?></a></h2><?php the_excerpt();?></div><div class="img_right"><a href="<?php the_permalink();?>"><img src="<?php echo $thumb;?>" /></a></div></li>
to
<li><img src="<?php echo $thumb;?>" /></a></div></li>
