OLEDB Example for database other than SQL Server or Oracle?(like Postgres)

I'm using Visual Studio 2008, Crystal 2008 Developer and ... Postgres 8.3.

I can't seem to find any examples where I can connect to another DB other than SQL Server and Oracle. The connectioninfo seems to require a databasename, userid, password and servername. I'm trying to figure out a spot to put in port and driver.

I'm using npgsql and I can connect a command object to it...

Thanks in advance,

J