The installation of bluetooth is a two step process. First one has to configure
the system so that the bluetooth device is detected and usable.
For this purpose install the relevant libs and applications with:
apt-get install bluez-utils, libbluetooth1, libbluetooth1-dev, bluez-pin
This will give you a working bluetooth installation. But without a GUI bluetooth is not much fun. For the
KDE desktop the kdebluetooth package offers an intuitive interface to configure and use bluetooth.
As the kdebluetooth package is not part of the default kde releases yet you need to get the package from e. g.
fred.hexbox.de. The install it with:
dpkg -i kdebluetooth-<version>.deb
and restart KDE.
For further information have a look at this thread. Also see here and the bluez faq