There was quite a bit of SEO spam to work through as it seems they let the domain lapse and it was bought up, but this seems to be the general ballpark of when it was live: https://web.archive.org/web/20081223024015/http://www.kenned...
For some reason Wayback didn't hyperlink the actual download, but updating the URL will return it: https://web.archive.org/web/20081224105001/http://www.kenned...