The software is still available for downloading from its official website, but based on the available links, you can download only the demo version. I believe full registration window will appear when the software gets installed on your PC.
Here is the link that you have to visit in order to download the software: http://breedmate.com/Home/RequestDemo
Note: If the demo doesn't allow you to register it, then you need to contact them to locate you as a customer. Sometimes they provide a different download for the program that isn't limited as the DEMO is right now.