BT adapter

In order to connect BT device, I just bought a USB 2.0 BT dongle and
installed on my pc running Vista Home Premium Edition successfully.
However, I could do anything with the BT device. Probably, it might due to
my lack of understanding how to use it. Your guidance is highly
appreciated.

Firstly, I would like to connect to a BT stereo headset. I paired them
successfully but could you hear anything from the headset when I play music
from WMP or iTunes. Currently, I cannot play the music from above two
programs with connected active speakers - before installation of BT device,
it works fine.

Secondly, I would like to connect to my Nokia phone to sync the contacts and
calendar using Nokia PC Suite. Again, connection seems ok but sync failed.

Thanks,

Scott