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I've tried Jdownloader, and not only did it download images from said thread, but also other threads as well. The best (free) option was Image Downloader which is an extension for Chrome. I had to set free download manager to disabled for that particular site, and it was able to rapidly download a bunch of links. The only catch? You have to wait while the list populates itself, which takes a while, and you can't use that browser window any more while it is crawling, meaning if you do, the results are gone. Thankfully it saves what it got done so far, so you can pick up from where you left off.
I would try Flashgot, but it's discontinued, and Bulk Image Downloader won't download past 100 images unless you pay for a year's subscription, so that's out.