Thanks Pidgeon - firstly, thanks for the help, but I am the original tech-dunce, so please be gentle with me !
I have both books in my "Downloads" panel [Windows, tools, downloads, that panel] so they've reached me, in BBeB.
I have tried opening Calibre, then "downloads", then tried to drag over to Calibre.
I can't rt click and "open containing folder" and then drag/drop, which is what I usually do, as the option isn't highlighted. What I have is "Copy download link" which I don't have the slightest clue does really !
Do I need to move the d/loads to My Docs or something ?
Sorry to be so dim, but as you can see, I ain't a tech whiz at all......