> How do you do it, I haven't been able to figure it out.
> If you just want to download just a sub-directory like 
> www.whateverthesitesnameis.com/thefolderuwant/ 
> Is it possible?
This is the default if you start from 
www.whateverthesitesnameis.com/thefolderuwant/ (plus 
external images if any ; delete default firlters to avoid 
that)

If you are starting from another location, use filters 
(options/scan rules):
-* +www.whateverthesitesnameis.com/thefolderuwant/*