ImportError: No module named numpy in Python Shell after running edit with IDLE
 

Hi,
I have recently installed:
matplotlib-0.99.0.win-amd64-py2.6
python-2.6.6.amd64
numpy-1.3.0.win-amd64-py2.6
I believe the download/installation process was correct, however when I open Python and Run Module, I keep getting an error (below).

IDLE 2.6.6 ==== No Subprocess ====
>>>
Traceback (most recent call last):
File "C:\Users\Ginny\Desktop\Sass\HERB RESISTANCE\PERTH_11.4\run simulation.py", line 6, in <module>
from numpy import *
ImportError: No module named numpy
>>>

I tried deleting and reinstalling Numpy but then I got a different error..

AttributeError: 'module' object has no attribute 'core'

Can anyone please help me with this? I am VERY new to this Python business and my online searches for answers have proven very counter-productive thus far!!

Thanks :)