Problem during installation

Hi, I'm new on linux, maybe that's why I have this problem.

When install the Campware software via Synaptics I receive this Message:

campcaster-station:
Depende: postgresql-8.1 but it is not installable ou
postgresql-8.2 mas não é possível instalar
Depende: postgresql-client-8.1 but it is not installable ou
postgresql-client-8.2 mas não é possível instalar

I don't know how to put postgresql to work, or maybe it's work already and i have other problem.

On synaptics i have install everything after search for postgresql and appears several things to install, but still have problems to pass the installation of campcaster station.

Thanks for any help.

Mike