Install problem Windows xp HE

[Jan Ekström]

I have tried to install Python 2.4 on two pc-s and get this error when I follow the instruction and type
python at the comand window or Idle window.
I am running Windows  xp home edition.
What am I doing wrong?
I have also ask for explanation on Googles and got the answer that there is such a problem but can'not understand the message.
Sincerely
Jan Ekström
Here is the error.
IDLE 1.1      
>>> python

Traceback (most recent call last):
  File "<pyshell#0>", line 1, in -toplevel-python
NameError: name 'python' is not defined
>>> 
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