Updated the URL for Python 2.0

Doc/whatsnew/whatsnew20.tex

@@ -16,10 +16,11 @@ the beta cycle before the final release of Python 2.0.
 }
 
 A new release of Python, version 2.0, will be released some time this
-summer.  Alpha versions are already available from
-\url{http://www.python.org/2.0/}.  This article covers the exciting
-new features in 2.0, highlights some other useful changes, and points
-out a few incompatible changes that may require rewriting code.
+summer.  Beta versions are already available from
+\url{http://www.pythonlabs.com/tech/python2.html}.  This article
+covers the exciting new features in 2.0, highlights some other useful
+changes, and points out a few incompatible changes that may require
+rewriting code.
 
 Python's development never completely stops between releases, and a
 steady flow of bug fixes and improvements are always being submitted.