If you've got the old SQL Toolkit, you've got everything you need even if it's not the latest. Your add-on has been replaced with the <A href="http://sine.ni.com/apps/we/nioc.vp?cid=6429&lang=US";>Database Connectivity Toolkit</A> but the old functions still work. They just don't use the latest database technology and require a bit more knowledge of the SQL progamming language. There was a user manual that came with the add-on and several examples. Put simply, you first create a Data Source Name to the database using the Windows utility ODBC Data Source Administrator. Then using functions in the toolkit, connect to the db, execute a SQL query to insert or retrieve data, and then close down the connection.
Have you tried using the toolkit and have a specific question in regards to it?
