I don't think it can be found online except @
http://muse.jhu.edu/cgi-bin/access.cgi?uri=/journals/manoa/v014/14.2sun-won.html
except for the first page preview you need access, (your library might have it)
it is also unclear if this is the Lee translation
the story is in this book, although Lee is only credited as the editor
http://www.amazon.com/Flowers-fire-Twentieth-century-Korean-stories/dp/0824803027
further information including some other translations from the Library of Congress
http://lcweb2.loc.gov/cgi-bin/query/r?asian/korbib:@FIELD(SUBJ+@band(+Hwang,+Sun+won,+Cranes+))