Hi Larry and I'd like to use Photos since I know you are right in that iPhotos will some day disappear. However, I still cannot get access to my iPhotos library. I don't know how to use the Time Machine to reinstall the old version of OS X so I am stuck and just have to learn El Capitan. However I am not sure that my problem really stems from that..... When I first bought this Mac (my very first one), I gave a different ID which was linked to my old yahoo.fr email address which I've had to change since. When I ask top download the latest version or reinstall iPhoto through Apple Store, I get a message that it doesn't exist in the French Store (I am automatically directed there since my bank details are in French and I wanted my French wife to be able to use this Mac if she wished). Or I get a message that my iPhoto was bought by another ID or refunded or even cancelled.
When I try and drag the iPhoto's library from the EHD, it reaches 8% then a message appears saying I am not authorised to access folder..... There is a link to Apple support.com/fr-fr/HT204484 which asks me to open Terminal and type in the command sudo chown -R you_username /Users/your_username/Pictures followed by sudo cown -R 700 /Users/your_username/Pictures
There are two problems - my photos are not in Pictures (Images in french) but the EHD and, secondly, when I am asked the password, I cannot type anything!
I can assure you it is all quite infuriating because I have loads of photos which I can no longer access at all........
I appreciate your assistance and hope this helps you a little more. Have a nice day Larry