The script seems to require Python 2.4 or higher and the Tkinter library. The python version that comes with Mac OS X 10.4 (Tiger) is Python 2.3. I believe Tkinter is included on the fink installation possibly as part of the shared library installation. Mac Ports also has python in its distributions (2.4,2.5 and 3.0). I don't know whether tkinter is included in their distributions.
Fink installation of python:
sudo fink install python24 python24-shlibs python24-socket
Python Distribution (now at 2.5.2)
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www.python.org]