Thank you for your reply The version of Photostory Deluxe is:220.127.116.11(UDP3)
The computer is running windows10 Pro Intel core i7. 16GB Ram with a Nvida GTX 650 graphics card, not that any of this would make any difference to my question. I do all the sorting outside Photostory as the images are used in a printed Album. The program I use is Irfanview. Here the images are renumbered from 0001 up. So it has nothing to do with the date. Sorting in Photostory Wizard is quite good for a small number of photos but then if you make one mistake you have to start again from that point. The other issue is they cannot then be exported in that order. If you put the photos direct into the program they stay in order but then you cannot use the wizard to apply effects, duration etc. So what do you suggest is the solution?