Joining GR - Need help Importing

Hi all, I have about 800 or so books in LibraryThing and now my girlfriend has talked me into joining her and our friends on GoodReads.

I have created a CSV based on the GoodReads template and sorted out the 100+ books that do not have ISBNs. I think I'm just waiting (??) for this list to be uploaded (it's been a few hours?).

Once I get that the ISBN list successfully uploaded; what is the best way to log all of the books that do not have ISBNs? Many are pre-1967 classics and there's no ISBN on the book.

Thanks for your help!