Just bought DownloadStudio. Great program

One question: How do I download all the photos from a web site without downloading all the other stuff? The website has heaps of galleries and photos like: www.<website>.com/gallery/folder/photo1.jpg, photo2.jpg, etc. and also photos in sub-folders like www.<website>.com/gallery/folder/folder2/photo23.jpg, photo65.jpg, etc. Sorry I can't name the website

Also, how do I just download the photos and not the thumbnails?

Thx, Harvey.