Please Help! Seperated but not combined

Helpful rsterling managed to talk me through the seperating process but now I don't seem to understand the combining part and one of the books now has a flag on it. I don't want to mess it up more. Can someone fix this for me?

Books in question:
http://www.librarything.com/work/8152686/book/82644203

This is actually book number 10 and is correct.

The book that was combined with it is:
http://www.librarything.com/work/12244020/book/82644150

I think I separated them, but there is more than one copy shown for White Tail the Deer and I don't know how to combine them and there is that pesky flag business.

Thanks, someone.

Fixed. Although I'm not sure what you mean by flagged.