#1 test_tree fails for python 2.4

[Perry Faulkner]

This test has a reference to the python.dll and checks
the version number to get the dll:

if 2.2: cdll.python22
elif 2.3: cdll.python23

and either needs to be extended for 2.4, etc., or use
something version independent, such as:

"cdll.python%d" % version

Thanks guys!