Either I'm being stupid or XEmacs is.  I'm using 
  "21.4 (patch 6) \"Common Lisp (candidate 1)\" XEmacs Lucid"
on an `alpha-dec-osf5.0' system.  A while ago, I downloaded a sumo
tarball, so I have old versions of the packages installed.  I want to
update my packages, so I choose a download site from Tools -> Packages
-> Add download site.  Then I go to Tools -> Packages -> List and
install.  After a second or two, I get this:
  *ftp anonymous(a)ftp.xemacs.org* seems not a pty. Kill?
First problem: this is meaningless to me, and probably meaningless to
some other people.  Could someone rewrite this error message in
English?
Anyway, my three options are "Yes", "No", and "Cancel", and
I haven't
been able to detect any differences in their behaviors.  I figure
there's something wrong with the ftp connection, so I select another
download site.  (First I choose the one I started with, to unmark that
box, then I choose a new one.)  When I try "List and install" again, I
immediately get this:
  Process not open for writing: #<process "*ftp
  anonymous(a)ftp.sunsite.utk.edu*" pid 480165 state:exit> 
This is my second problem: once there is one failure with a download
site to get the package listing, I can't switch to another site and
try again.  As far as I can tell, it's not even trying to open the ftp
connection; it just gives an error right away and quits.
  
-- 
J. H. Palmieri                      
Dept of Mathematics, Box 354350    mailto:palmieriļ¼ math.washington.edu
University of Washington	   
http://www.math.washington.edu/~palmieri/
Seattle, WA 98195-4350