If you can not see ms-sql-s in your 'netstat -a', this can be because
you are running a version of Microsoft SQL Server 2000 or
MSDE that has known security vulnerabilities
when used in conjunction with your version of Windows.
To reduce virus attacks, the TCP/IP and UDP network ports have been disabled.
To enable these ports, you must install a patch.
http://www.microsoft.com/sql/downloads/2000/sp4.mspx