Won't Miss #302 - denial of free downloads

My sister bought a Barnes & Noble "Nook" eBook reader last year and told me that one could get a lot of free books from them and read them either on one's PC, Mac, or iPad even without a Nook. Since my husband recently bought an iPad specifically to read eBooks, we were happy to hear this. Unfortunately, when he tried to download the Nook reader for iPad, the door was shut on his doing so