You can restore your puzzle packs to the collection page from the Jigsaws Store, the My Packs category:
1) go to the Jigsaws Store 
2) choose 
category on the left side of the page
3) you need to find the pack on the list, click on it and then click the Download/Restore button
Cannot find the old my account and deleted puzzles. new screen hard for my old eyes to read. New screen does not look at all like the old one, hard to find things.