Hi Mo,
This note is in this case is not applicable. The information is misleading about the ODBC driver right now (we're in process to update this message in case of Linux).
But the next errors are what we're looking for. Make sure the driver is installed as per SAP Note 1644499 and you can remote connect through SQLCMD to the database server while logged as <sid>adm. The driver must work for this user, since the system runs under <sid>adm.
Once this is working and you have the minimum DBSL applied you should be able to remote connect to SQL Server.
Generally this wiki provide this guidance on how to troubleshoot it:
http://wiki.scn.sap.com/wiki/x/5gkLGg
Best Regards,
Luis Darui