I want to read library books on my Nook Tablet, in order to do that I have to install Overdrive. I have had no problem installing overdrive on my PC and on my Ipod touch. However, I am not having any luck with the Tablet. I go to the Overdrive web site and download the Android version. It downloads but when I try to install it I get the message that it was able to install and I should archive it and then unarchive it. In order to archive it I have to find the downloaded file somewhere. I go to library, my files, my downloads, and there is nothing there. I'm sure it's something simple I'm doing wrong but I can't figure it out. Assistance SVP.