The 101 stores were compiled in 1919 (http://en.wikipedia.org/wiki/101_Zen_Stories), and then reprinted by Paul Reps as Zen Flesh, Zen Bones (which is how I originally read them). The originals were written in the 13th century called Shasekishū (http://en.wikipedia.org/wiki/Shasekish%C5%AB) by the zen master Mujū.

I'm not sure how copyrights apply to excerpts, translations, edits and re-prints of presumably public-domain original works.

Well if you fancied this on your ebook reader, this new site makes it easier to do something like...

    with open(r"zen.html", "w") as f:
        pat = re.compile(r'.*\<p class="header"\>(.*?)</p>.*!-- Display story -->(.*?)</div>', re.DOTALL)
        for i in range(101):
            url = "http://www.101zenstories.com/index.php?story=%s" % str(i + 1)
            html = urlopen(url).read()
            result = pat.match(html)
            f.writelines(["<h2>%d. %s</h2>" % (i + 1, result.group(1)), result.group(2)])

I noticed a typo in the article's link second story that wasn't present in yours.

So at least it seems like this one is a bit better maintained or being taken care of.