The bad news is that even if you setup your system to have
scipy, you will probably not be able to use the GUI because
fink does not have a current 'wx' package on 10.4. It exists
for python 2.4, but it does not seem to work properly with
the other software, and does not come with python 2.5.

On the plus side, with just numpy and scipy, you can get all
of the information from xmat_tool.py. It just won't come
with the pretty GUI. If you are still interested, read on...

----

So your XCode version is 2.4.1. That means if you want
to install scipy via fink (and possibly no matter what you
try), it will be necessary to upgrade your XCode package.
The scipy package requires the more modern compiler with
XCode version 2.5.

In your case, to get the scipy package (which is only used
for part of xmat_tool.py, to get condition numbers and to
fit a 1D time series to the curves in your X matrix), you
would:

1. Download and install Xcode tools from connect.apple.com
(free login and password required). Get version 2.5 for
OS X 10.4.

2. Add unstable/main and unstable/crypto to the "Trees:" line in
your /sw/etc/fink.conf file.

3. fink selfupdate; fink scanpackages

4. sudo fink install scipy-py25

5. Point to the new python version.
cd /sw/bin
sudo ln -s python2.5 python

6. Put /sw/bin early in your path (before /usr/bin), so that
it is what you use for python (rather than /usr/bin/python).

Steps 1, 3 and 4 each take a long time. And that is a depressing
amount of work just to get scipy...

7. The final step... Buy a Linux Fedora 9 system and life is
easier. :)

- rick