Thumb Puller - description from Softdepia.com:
Point Thumb Puller Picture Downloader at a web page containing links to photos (like a thumbnail page or contact sheet type index) and it downloads all the full size images to the directory of your choice. You can even run 2 or three or more ThumbPullers at once and grab all images from a site in seconds. You provide the web page and the destination directory for the pictures and sit back and relax while ThumPuller does the rest! Start a slow site downloading and walk away while ThumbPuller faithfully grabs all the images from the index while you take a break.
Thumb Puller is a "Free to try" program. You can download and try it for an evaluation period.