matplotlib installation issue on OS X

Hi all,

Sorry to trouble you with this (likely) trivial issue, but I installed matplotlib 0.87.4_r2587 using the .mpkg included with SciPy SuperPack for Intel, and I'm unable to import pylab from the iPython command line. When I try I get the error message "no module named matplotlib.pylab." I checked and the matplotlib sub-directory is there under my /Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages directory. In iPython a help(); modules shows pylab but importing doesn't work. I'm new to this framework business that seems to be favored by Apple, so I'm not really familiar with how Python is setup in OS X. Any tips are much appreciated.