I know that you already contacted us via the support form, and I replied to your message suggesting you try the forums here, in case any other users had recommendations for alternative software.

Since no one has replied yet, here is one similar app you might want to try out:

http://download.cnet.com/Update-Checker/3000-2094_4-204402.html

Our editors gave it a great rating (albeit in 2011), and the user ratings are consistently good as well.

For additional tips on searching for software on our site, please see this FAQ article.

As you noted, there is also the option to use the Download.com Watchlist in order to receive email alerts.

Regards,
Jen
Download.com Support