In response to Jack Conway's quest to Un-zip on a Macintosh, I have the
answer!  I had the same problem a few months ago when trying to download
some ragtime files from the web which had been zipped.  It looked like
I  was stuck with the procedure Robbie mentioned (unzipping on a PC then
moving the file to a Mac) when I discovered the utility you need, which
is called ZipIt.  It is Shareware ($15) and you can find it at:

    http://www.hotfiles.com/swbrowse/MC10/5/2/mac-MC10527.html

The file is 358k (V1.3.5), and it works great.  Granted, I had to read
the instructions to figure it out, but if you follow them you should
have no problems.  If you don't have web access I could probably find a
phone number or address for you to pursue it directly.

Rob Deland

 [ Ed. Note: This address is given to register ZipIt:
 [    Tom Brown
 [    P.O. Box 203425
 [    New Haven, CT  06520-3425
 [    email:  Thomas.A.Brown@yale.edu