Trying to install ODBC driver on Windows XP notebook

I have latest Postgresql installed on a notebook and now trying to
install the driver which I have downloaded and run so that it is now
available in the ODBC Data Source Administrator

This machine has CA security suite, latest version installed and I have
added a network rule that allows all applications using TCP and UDP on
Port 4532 to gain access In and Out

I have the correct database name and get the following message when I
try to Test the connection.

Could not connect to the server
No Connection could be made because the target machine actively refused it.
(192.168.1.7:5432)

I don't know what else I can now do to get the connection.

Any suggestions would be appreciated.

Cheers

Phil Jackson