[Pythonmac-SIG] tkinter on aqua? // pyhtonlauncher useful?

[helloleo]

hi there

i'm new to the list and new to macpython.

two things  i don't understand:
- downloaded macpython and tried one of the tkinter demo. the don't work. do
i have to download tkinter seperatly? does tkinter runs under aqua?
- on my mac are three python binaries in different locations. which one
should i bind to pythonlauncher? is pythonlauncher a useful utility?

thanks for advice, leo