How do I get audiobooks to show up in Audiobook folder

My husband just gave me his Sansa View so I can listen to audobooks (WMA) that I download from the library since they will not play on my new Samsung Galaxy S3. I successfully got the files on the player but they went into the MUSIC folder. How do I get them to appear when I navigate to on Audiobooks in the menu? It is empty now.

Hook up to the computer and move them from the Music folder to the Audio Books folder.

+1. This works. I tried it myself.