I need help with pyhton

    im trying to get this python programing thing to work im trying to teach myself i have just installed the latest version of python but the guide sais the next step is to enter python on my command prompt
    it isnt recognizing it though it sais:
    'python' is not recognized as an internal or external command, operable program or batch file.

C:\Users[b]christopher[/b]\> set PATH=%PATH%;C:\python\bin
C:\Users[b]christopher[/b]\> python
Python 2.5.1 (r251:54863, Jan 17 2008, 19:35:17)
Type "help", "copyright", "credits" or "license" for more information.
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