PostgreSQL and MySQL

I have been running horde with MySQL for some time now and all is
working great.  I thought that I would try out SpamAssasin so I
installed and configured it and to my surprise there was not a script
for creating a DB for MySQL.  I decided to run a separate instance of
PostgreSQL and just use that.  The DB and Tables created just fine and
then I tried to hit it from my webpage and it fails to connect, this is
not a user pass error this just won't hit the psql server at all.  I can
connect fine locally and even run the Module for Webmin so I know the
server is running.  I have entered 5446 for both tcp and udp in
/etc/services and it still won't connect from the web.  I have never
really used PostgreSQL before so I am stuck at what to do.  What I would
really like to do is to just make a MySQL DB and just connect to it but
I can see that I have to change all kinds of things in the sam module
for that and I am just not up to it.  Is there anyone out there who has
successfully created a MySQL DB for sam?  If so, I would really like to
know how to do it.
 
Thanks,
 
Barry