You should be able to use some kind of Fusker program
like this one.
Just right click on one of your photos and get the URL, pop it into the Fusker app and then change the last bit of the url. For example, if the last four numbers of the URL are 1000.jpg just add [1000-1500] before the .jpg and it'll display all the pictures it finds.
You could also use Flash Get, put in the URL for the front page of each album and set it to download all files. There should be a setting to go 'deep' by one link, so it'll download all the files from each album page and then it'll download everything from each individual photo page.