I got married a couple of weeks ago, our wedding photographer took about a million photo's (so it seemed) and uses a site called estudioresources.com to put all the photo proofs online. There are 863 proofs, which will dissappear in January. I'd like to be able to download all these photo's easily (they're water-marked, but I'd like them anyway), I found the folder that all the photos are stored in, but I get the "403 directory listing denied" message if I try and access it. I know they're in there.
They're named 11001pjm-800.jpg, 11002pjm-800.jpg, 11003pjm-800.jpg etc. etc.
So, my question is:
Is there a piece of leeching software than will grab all files named something like website.com/folder/$$$$$pjm-800.jpg in a folder, where $ is a number between 0 and 9

Or how else could I get them?