Can't remove old RPM

[Jim]

FC8-i386.
I upgraded from FC7 to FC8 and now I have got problems with old rpm 
avahi-0.6.17-1.fc7.i386 , below is the attempt to remove . I can't 
upgrade because of the old rpm.

When I did a  rpm -qa | grep avahi , both avahi rpms showed up:
avahi-3-0.6.21-8.fc8
avahi-0.6.17-1.fc7.i386.

I did a rpm -e --nodeps --allmatches avahi and removed 
avahi-3-0.6.21-8.fc8, but it wouldn't get rid of avahi-0.6.17-1.fc7.i386.

[root at x86_64 mickey]# rpm -e --nodeps avahi
error reading information on service avahi-dnsconfd: No such file or 
directory
error: %preun(avahi-0.6.17-1.fc7.i386) scriptlet failed, exit status 1

So how do I get rid avahi-0.6.17-1.fc7.i386 that supposedly not even 
installed.

Is there a yum command that I could also use, that would let you use the 
comparable --nodeps command