[Pythonmac-SIG] python3 on my mac

[Dan]

HI everyone.  Wondering if anyone can help a newbie.  I tried  
installing python 3 on my mac and think I messed up a bit:

1. I didn't do the altinstall option.  Is this really bad, and should  
I uninstall and try again? Right now I have to type "python3.0" to get  
it to work at terminal screen
2. If so, how can I uninstall? Would time machine be of any help here?
3. I can't seem to get IDLE to work, especially with Python 3 (when I  
run it from terminal it has no menu bar and i think it's using python  
2.x)

Any help would be greatly appreciated.  Hopefully I didn't permanently  
screw up my mac's python installation...