Homepage slider images

Hi, For some reason my slider images are not working. I have created post and added images in "Featured post slider option". The texts of posts are working but the actually images are not there in homepage. I have tried several days everything but don't find any reason for the problem. (I have also studied your comments to other questions). I wonder if I have wrong settings in Kathmandu or is there some error in my windows 8 or in my computer settings? page: http://to-ancient-rome.org/