Welcome to the forum. Your '97 system sounds like it was originally a Model 510, which refers to the table system. The primary difference from its predecessors is a larger main table, expandable table system, and related accessories. It was followed by Model 520, the most obvious difference is that the 510 has steel tubes on the front and back of each table while the 520 has aluminum extrusions. Like almost every upgrade, these improved systems are offered as upgrade kits to older models, so it is just a guess on my part that yours is and was a 510.
It would have originally come with four tables: a main table, an extension table, and two floating tables. The extension table and floating tables are the same size, the difference is the extension table has a base ('legs') for mounting on either end of the SS bench. Many users expand the table system, adding any combination of additional tables and mounting tubes. This thread contains a few examples of setups based on expansion:beginning-woodworking-f6/shopsmith-extension-table-configurations-t23553.html
The table systems normally come with four connecting tubes, which the tables clamp to, and two adjustable legs. Other components are available and/or shop made. It sounds like your system is expanded from original. It is not really possible to answer your question of how to set it up, the answer depends on what woodworking operation you are doing and what components you have. Generally, they expand the table system any combination of left, right, infeed, and/or outfeed.