The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Whaty Technology:
The Parents Class software is designed to help parents take better care of their babies. In this software, we provide scientific knowledge on baby nurturing, caring and basic teachings during their first week after birth which would become a solid foundation of their future education. Our product covers the topics including feeding, daily care, living environment, protection from disease, and some abnormality handling. With our product, parents will get a thorough understanding in how to take care babies in their first week in life. One of the great features of our product is that, to read the content in our product, one doesn't need the access to Internet of any kind. The courseware in the product is completely localized on the iPad hard disk. A local HTTP server is implemented in the product for users to access the courseware through HTTP protocol, just as if there is a WiFi environment.