Dear Farrukh
you should first install a few packages and their dependencies through apt-get (I assume you are familiar with it, otherwise please ask):
build-essential
libgsl0-dev
python-numpy
python-scipy
python2.6-dev (assuming you have Python 2.6 installed)
python setup.py build
sudo python setup.py install
Please let us know if this works for you.
Cheers
Marco