Can't connect to a PG database from MicroOLAP, but can connect from SSH?
From the error dialog it is clear that something around your connection is wrong.  

First be sure that everything you included here matches: you have an error about localhost and port 3082 and you present a connection dialog with a foreign host and port 5432.

Then you have to teach PostgreSQL that it should accept connections from your home.  This can be done via the pg_hba.conf file.  You will need a line added like this (the header is already there) - if you don't have access to it, ask the person in charge of it to do this:

# TYPE  DATABASE        USER            ADDRESS                 METHOD
host    dnizetic        dnizetic        161.53.120.19/32        md5