Be careful! The offer is for the old version (188.8.131.52). Nothing immediately wrong with that, but after you have installed, a Pop-up will tell you that there is a newer version and it is free for everyone with an 8.x version. This might be true for people that have BOUGHT the 8.x version but it is NOT true for people that got 184.108.40.206 from Sharewareonsale. So, do NOT upgrade. If you did upgrade by accident, uninstall Alfa eBooks Manager and install the free 220.127.116.11 version again.
It seems that some features don’t work anymore in the old version and if that is the case, then the publisher definitely made the wrong decision to make a version available here that is not fully working, but I need to test more to be certain.