super() was introduced in CPython 2.2, but it changed in Python3: http://www.python.org/dev/peps/pep-3135/. The link you posted uses super as "super(cls, instance)", but the main article uses Python 3's super, which can just be called as "super()", and it figures out the class and instance.
So no, super really has changed, and the syntax in the article does not work with very old version of Python.
I upvoted the parent, because that syntax distinction is actually fairly giant, always having to name the class and also changing that on renames etc, is a PITA.
It is actually one of the things that annoys me most about Python, I guess this is the first thing that actually tempts me with Python 3. Damn.
So no, super really has changed, and the syntax in the article does not work with very old version of Python.