At last!! Thank you for Publisher!
My first thought was how do I import my indesign files? At the moment there is no 'Import' button and 'Open' an indesign file shows a greyed out 'filename.indd'. Hmmm?? But because I always create a pdf from my indd files, I found I could 'Open' the 'filename.pdf' with no problem other than it opens as pages not facing pages. I then clicked the 'Document Setup' tab and changed the 'Layout' to 'Facing Pages' and I now have my indesign page saved as 'filename.afpub'.