add to /etc/apt/sources.list:
deb ./
and add my gpg key to apt keyring:
gpg --keyserver hkp:// --recv-keys  47685426; gpg --armor --export 47685426 | sudo apt-key add -
than install NetworkManager with sudo apt-get install network-manager
NetworkManger has two parts one is run on the system level to
manager connections and gather information. The other is an applet
the user can interact with. Since NetworkManager is not part of
main yet, you have to add nm-applet to your session once.

(instructions for gnome only)
Go to System -> Preferences -> Sessions
In the Startup Programs tab, click Add
type "nm-applet", click OK.
log out of your gnome session, and log back in again.