Did you check the location of the images? Also, see in iSiloX in the Links property if you have "Follow off-site links" enabled. If the images are located on another server root than the web page that you are downloading (for instance the server is
www.turcic.com but the images are located at images.turcic.com), and if this option is enabled, images won't be downloaded.
However, if you want to download images from another server and at the same time avoid downloading any other off-site link, you must use the URL Filters option.