yum error during FC2 -> FC3 upgrade

Hi all,

I posted about this last week. Following the directions here:
http://www.brandonhutchinson.com/Upgrading_Red_Hat_Linux_with_yum.html
, on yum upgrade, I get (after a bunch of other Package... set to be
updated messages):

---> Package arts.i386 8:1.3.1-1 set to be updated
--> Running transaction check
--> Processing Dependency: libidn.so.11 for package: kdelibs
--> Processing Dependency: librpmio-4.3.so for package: rpm-python
--> Processing Dependency: libbonoboui-2.so.0 for package: gconf-editor
--> Processing Dependency: libgnomecups-1.0.so.1 for package: libgnomeprint22
--> Processing Dependency: librpmio-4.3.so for package: rpm
--> Processing Dependency: librpmio-4.3.so for package: net-snmp
--> Processing Dependency: librpm-4.3.so for package: net-snmp
--> Processing Dependency: libnetsnmpmibs.so.5 for package: net-snmp
--> Processing Dependency: libexif-devel for package: ImageMagick-devel
--> Processing Dependency: libgpg-error.so.0 for package: libxslt
--> Processing Dependency: librpmdb-4.3.so for package: rpm
--> Processing Dependency: libgnomeui-2.so.0 for package: gconf-editor
--> Processing Dependency: librpmdb-4.3.so for package: rpm-python
--> Processing Dependency: libgcrypt.so.11 for package: libxslt
--> Processing Dependency: libsepol for package: SysVinit
--> Processing Dependency: libgcrypt.so.11(GCRYPT_1.2) for package: libxslt
--> Processing Dependency: libnetsnmpagent.so.5 for package: net-snmp
--> Processing Dependency: libgnomecups>= 0.1.11-2 for package: libgnomeprint22
--> Processing Dependency: httpd-suexec for package: httpd
--> Processing Dependency: synaptics for package: rhpl
--> Processing Dependency: libidn.so.11 for package: curl
--> Processing Dependency: librpmdb-4.3.so for package: net-snmp
--> Processing Dependency: libnetsnmphelpers.so.5 for package: net-snmp
--> Processing Conflict: udev conflicts kernel< 0:2.6
Traceback (most recent call last):
  File "/usr/bin/yum", line 8, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 104, in main
    (result, resultmsgs) = base.buildTransaction()
  File "/usr/lib/python2.3/site-packages/yum/__init__.py", line 174,
in buildTransaction
    (rescode, restring) = self.resolveDeps()
  File "/usr/lib/python2.3/site-packages/yum/depsolve.py", line 190,
in resolveDeps
    (checkdep, missing, conflict, errormsgs) = self._processConflict(dep)
  File "/usr/lib/python2.3/site-packages/yum/depsolve.py", line 492,
in _processConflict
    uplist = self.up.getUpdatesList(name=confname)
UnboundLocalError: local variable 'confname' referenced before assignment

I'd been running an old, pre-FC2 kernel, which someone helpfully
pointed out, but I'm getting the same problem now, running 
2.6.8-1.521. Has anyone else encountered this?

Thanks.