[iTunes] Grouping tracks under Audiobooks

[sambouka]

Hi,

I have some free audiobooks that I downloaded which I cant seem to  
catagorize it under "audiobooks" on itunes. The reason behind why i  
would like to do this is so I can import it on my iPod under  
Audiobooks and get back to where I left everytime i play it again.

I tried grouping it under "audiobooks but that didnt work either.
Any ideas?

Thanks.

Sam