Share 'access scipy modules'

Hi guys I got a problem here and i can't seem to find my way around it: I have installed numpy and scipy ( following the instructions on the site http://www.enthought.com/repo/.iron/) and everything works well, except...i am not able to access some modules in scipy (for example the sparse or qhull). Are they indeed not accessible or something did go wrong in my installation?Any suggestion on how…