After some advise from Bill Gribble, who I connected with on the gnucash-user 
email list, I have successfully installed GnuCash 1.6.0 on my KDE desktop.  
This is how I did it:

- Download and install ALL of Gnome-1.4 from www.ximian.com.  All of it 
(145MB!).  During the install make sure you select the option to leave your 
current desktop in place, unless you want to switch to Gnome.

- Download the files Guppi-0.35.5-1.i386.rpm, g-wrap-1.1.9-1.i386.rpm and 
gnucash-1.6.0-1.i386.rpm from 
http://www.gnucash.org/pub/gnucash/redhat-7-guile-1-4/

- As root at a terminal, use rpm to install these packages, both guppi and 
g-wrap before gnucash, using the --force option like this:

rpm -i -v --force <rpm file name>

If the --force option does not work, try again without it.

That was it!  After doing these operations, guncash runs on my KDE desktop!

Alan