First, thank you for your quick response.
AFAIK, there is no official website for alpha four. It is legacy software that ran on DOS only. I did a google search for alpha4 downloads and the only page that came up was the one I just mentioned. There was a button that directed me to the manufacturer of the software, but when I go to it (alphasoftware.com) there's no link to download the old software. I was (or thought I was) asking users who had commented on that "download" page how they got the software, and I thought I might get an answer because the latest question posted there was May 10 this year.
