Thank you for clarifying that. The reason I ask is that some companies have a standard and there is no getting around it, understandably. But setting up RSSQL is not a trivial task.
If you want to log to SQL from PLCs and you want to get it done fast, then you should download FactorySQL. The installer comes with a trial version of Kepware OPC server and gives you the option to install MySQL. It takes about ten to fifteen minutes to get it all set up and logging. You can log to MSSQL server, Oracle, DB2 or just about any SQL database in minutes.
We only use FactorySQL anymore because its easy to use, it does more and costs less.
If you still want to go down the RSSQL route, on step 4, the easiest route would probably be to select an ODBC connector for MSSQL Server under datasources from the control panel of Windows. This creates a DSN which should be setup to point to the database you want to refer to. Make sure you do this under the system DSN tab. The database and tables must already be created (you can do this using MSSQL server Enterprise Manager). Select the table you want to affect.
Hope this is of use to you.