LinuxQuestions.org - RH8 apt-get KDE 3.1.2 install error

Using apt-get to install the newest version of KDE on RH8. When it tries to install, I get the following error:
####START######
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
alsa-lib arts kdebase kdelibs libmad qt redhat-artwork redhat-logos
redhat-menus themer
The following packages will be upgraded
arts kdebase kdelibs qt redhat-artwork redhat-logos redhat-menus
The following NEW packages will be installed:
alsa-lib kde libmad themer
7 packages upgraded, 4 newly installed, 0 removed and 139 not upgraded.
Need to get 0B/48.1MB of archives.
After unpacking 16.2MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Executing RPM (-Uvh)...
warning: /var/cache/apt/archives/alsa-lib_0.9.6-1.fr_i386.rpm: V3 DSA signature:
NOKEY, key ID e42d547b
warning: /var/cache/apt/archives/themer_0%3a1.06-0.fdr.0_noarch.rpm: V3 DSA sign
ature: NOKEY, key ID ff6382fa
Preparing... ########################################### [100%]
file /usr/share/themes/Default from install of redhat-artwork-0.81-0.fdr
.0.rh80 conflicts with file from package gtk+-1.2.10-22
file /usr/share/themes/Default from install of redhat-artwork-0.81-0.fdr
.0.rh80 conflicts with file from package gtk2-2.0.6-8
E: Sub-process /bin/rpm returned an error code (18)
######END######

So I thought maybe the gtk+ package was out of date. So I tried to apt-get gtk+ and received the following error:

####START######
warning: /var/cache/apt/archives/gtk+_1%3a1.2.10-25.fdr.4.rh80_i386.rpm: V3 DSA signature: NOKEY, key ID ff6382fa
error: Failed dependencies:
gtk+ = 1.2.10 is needed by (installed) gtk+-devel-1.2.10-22
E: Sub-process /bin/rpm returned an error code (1)
####END#####

Any clues?
TIA
Patrick