I was not able to download from this page either. The solution I came up with is to click on the "Widget History" button just above the comments. There will be a link to download the widget just below and to the right of the "Widget History" button you clicked on.
This is wonderful! It's just what the world needs, a little bit of history and beauty in a sea of technology. It will be on my desktop forever! Great job, and keep making similar Widgets if you have time.