avahi failed to update correctly after yum upgrade to F8

[Claude Jones]

I tried the yum update method F7-F8 on my home computer last night, and it 
worked fairly well. The machine is up and running, but, a few problems:

I'll list them in separate posts, but, the first is that avahi failed to 
update correctly. I now have this:

# rpm -qa | grep avahi
avahi-0.6.21-6.fc8
avahi-qt3-0.6.21-6.fc8
avahi-compat-howl-0.6.21-6.fc8
avahi-compat-libdns_sd-0.6.21-6.fc8
avahi-devel-0.6.21-6.fc8
kdnssd-avahi-devel-0.1.3-0.2.20060713svn.fc8
kdnssd-avahi-0.1.3-0.2.20060713svn.fc8
avahi-0.6.17-1.fc7
avahi-glib-0.6.21-6.fc8

So, I have two versions of avahi, now - the fc7 and fc8 
Attempts to remove avahi-0.6.17-1.fc7 result in an error:

# rpm -e avahi-0.6.17-1.fc7
error: %postun(avahi-0.6.17-1.fc7.i386) scriptlet failed, exit status 1

I get a similar message using smart, yum, or kpackage

Can anyone give me an idea of how to proceed?
 
-- 
Claude Jones
Brunswick, MD, USA