Yes, as whpalmer4 explains, that is my site, and there are no later versions (by my hand) of those TaskPaper scripts.
As I have personally moved on to FoldingText, I can't really justify doing any more work to the TaskPaper code myself, but I have now put copies of the old scripts
on GitHub whence others would be welcome to fork and develop them further.
I do, however, strongly recommend
FoldingText, which has a much richer scripting interface (now available in the AppStore version as well as in the DEV versions) and generally has much more power and potential than TaskPaper did. I think it will develop into a platform for quite a rich ecosystem of add-ons.