This CNN Article doesn't tell you. It speculates that OBL is in (gasp!) Pakistan. I got all excited because the teaser line "trees and tapes may hint at Bin Laden location" sucked me right in.
But the information didn't really go anywhere: OBL might be in Chitral (based on the trees in a video), and al-Zawahiri is in Waziristan. Pakistan, of course, allows no foreign troops. Plus, OBL and al-Z far surpass any Pakistani politician in popularity.
They love him lots and lots. So there he stays.