How do I get Photos - iPhotos to work with my iPhone

I went to my computer to download some photos on my iPhone and noticed an update available 10.10.3 - I always download all that are offered. 10.10.3 loaded, and I proceeded to open iTines and iPhoto and plug in my iPhone, All went well until I noticed PHOTOS I opened it to see what it was and was asked to selected a library as it seemed the only option on offer I did and found a mass of over 3500 photos in folders that I did not totally recognise, including one of Face photos. It was only THEN that I noticed a NO ENTRY SIGN on iPhotos. Thanks to some Mac Forum advice I have now been able to install a new iPhotos 9.6.1 to replace this but I now have a big problem that I cannot edit the photos on my iPad or iPhone.

I have 10.10.3 installed on a 2 month old Mac Mini, with iPhoto-9.6.1 - PHOTOS-1 - iTunes-12.1.2.27 & iOS-8.3 on the iPhone & iPad.

I Plug the iPhone into the Mac, iTunes can see it, click the camera icon I have a list of 30+ folders - 2 are ticked which are MC, it has 19 photos in it and PP, it has 1 photo in it - which is correct for the iPhone.

In PHOTOS when I plug in the iPhone, a new command appears in the top bar ‘IMPORT’ click on that and the iPhone icon shows on the left side with a box to tick - ‘open this device’ - click it and the message is ‘NO PHOTOS’. Under Albums I find the same 30+ listed with MC containing 50 photos & PP with 33.

In iPhoto I plug in the iPhone & it is recognised with a message on the right , LOADING… and there it stays STUCK but not crashed. Down the left side is listed the same 30+ albums, MC with 50 photos & PP with 33.

Question - how do I now get Photos/iPhoto/iTunes/to communicate with my iPhone/iPad, to update the photo albums as they did before 10.10.3 & PHOTOS, were introduced up the complete system???? Your help please