The easiest (which is not completely easy) is to check the Wiki for the product. At the bottom of that wiki page is the version history. If yours is older...update it by the link in the top of the same Wiki page (not the shopping cart).
And yes, they were on an older version (the one in the shopping cart).
We are removing download from the shopping cart to avoid these version control issues. All Tallus software is either free or licensed so we don't need to lock down the download ability to subscribed users.
So feel free to try any of the our latest versions!