I've got problem about installing Meld on FC4!

[Truong Xuan Tinh <tinh truong pyramid-consulting com>]

I've installed Meld (1.1.2), but when I've tried to run it, I've got
this error
 Traceback (most recent call last):
  File "/usr/local/bin/meld", line 93, in ?
    import meldapp
  File "/usr/local/lib/meld/meldapp.py", line 28, in ?
    import prefs
  File "/usr/local/lib/meld/prefs.py", line 52, in ?
    import gconf
ImportError: /usr/lib/python2.4/site-packages/gtk-2.0/gconf.so:
undefined symbol: gconf_unset_flags_get_type
I've set and exported the PYTHONPATH like this:
PYTHONPATH=/usr/lib/python2.4:/usr/lib/python2.4/site-packages
I've never worked with this programming language before.
Here is my Python package on my computer:
I've executed the following command: rpm -qa | grep "python". And here
is the output:
gnome-python2-canvas-2.12.1-1.1.fc4.nr
rpm-python-4.4.1-21
mod_python-3.1.4-2
gnome-python2-extras-2.10.0-2.1
dbus-python-0.33-3
python-ldap-2.0.6-4
libxml2-python-2.6.19-1
python-urlgrabber-2.9.6-1
python-sqlite-1.1.6-1
gnome-python2-gtkhtml2-2.10.0-2.1
python-devel-2.4.1-2
gnome-python2-bonobo-2.12.1-1.1.fc4.nr
apt-python-0.5.15cnc7-6.fc4
gnome-python2-gconf-2.12.1-1.1.fc4.nr
python-elementtree-1.2.6-4
python-2.4.1-2
gnome-python2-2.12.1-1.1.fc4.nr
Does my system miss some thing?
Thank you very much.