All you need to install your e-Sword HD module at no additional cost is to enter your Email address and "Product Key" you received when you purchased the module for use with e-Sword. If you do not have that information, just visit us on the Contact page and let us know which module(s) you purchased. We will then email you instructions on retrieving this information.
No. E-Sword HD is an "offline" app. An Internet connection is only needed for downloading the app itself, and any additional modules you wish to install.
Yes. We tested on all iPad models running at least iOS 5.1 which is available for all generations of iPads.
The folks at Bible Software Review have created a demo here:http://www.bsreview.org/blog/2012/10/e-sword-hd-for-ipad.html