Lane,
I have used this script on many occasions. The one thing you have to know, is you must do some formatting to the raw datafeed. I know the one I always forget, that will make the script not work every time, is you have to open it in a plain text editor (I prefer to use Notepad++). Then you have to remove the quotation marks (" ") from around your column titles. I mention this because I have several times forgot this myself
It is really a great script once you learn the nuances of formating the datafeed.