Those are the correct versions.
Can you see if the problem is the same with all Python applications? You can try with other Python programs and see if they behave properly. For instance, Pronterface (which is a great interface for 3d printers by Kliment) is a pure Python app at [https://github.com/kliment/Printrun] . You could try to see if you can get it to run properly or just do the window thing.
I saw the same problem in the Mac when you can execute a python and then get the window flash thing or you can run so it compiles and executes properly. In that case I had to right click and pick another software to "open" it in order to run it - in the mac it was "pythonlauncher" and by making the default for all .py scripts I stopped the window problem. I am not sure if this is the simplest or even correct way but it worked. There is apparently a windows version here : [http://blog.python.org/2011/07/python-launcher-for-windows_11.html].
Remember that Repg is not a Python application - it is an executable, Skeinforge is a Python application, so Repg "works" (it can't slice though) even if Python does not.
Unfortunately, I am not that versed on Python and most of experience is from trial and error (mostly error). :P
