Multiple FTP download using Muliti thread

[johnny]

I have taken a look at the code that dose one download at time, in
multi threaded manner:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/465531

What I wanted to do is, make it download multiple files at the same
time.  I am new to python and have gone over "Dive In To Python"
yesterday.  Can some give a idea what I need to do.  Once I understand
the big picture, then I can piece together.