I guess we miscommunicated a little. In order for the script to work you have to be using SWS v2.3.0 #7 or later. You can get the latest
here. When you run the installer it will put the sws_python.py file in the right place.
I'm using Python 3.2 so I don't know if there will be issues with your 2.7 install. It's not going to hurt to try though.