Trying to get s3cmd to work on centos 4.9 (cpanel install)

It has python 2.4.3

python setup.py
No module named etree.ElementTree
No module named elementtree.ElementTree
Please install ElementTree module from …

when I try to rpm python-elementtree I get
warning: package python-elementtree = 1.2.6-5.el4.centos was already added
Preparing…
package python-elementtree-1.2.6-7.el4.rf (which is newer than python-elementtree-1.2.6-5.el4.centos) is already installed

Python 2.4.3 (#1, Sep 25 2006, 15:51:40)
on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from elementtree import ElementTree
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
ImportError: No module named elementtree

at this point I am stuck

Thanks for any advice!