It was an upgrade from 256.
--------
I had found another post by someone with a similar problem, but the reverse issue. They needed tourney_use, and I needed tourney_user. The arcade.php file contained tourney_use
so I tried changing those entries to tourney_user, and the installs all worked ok.
----------------
Im not sure if this is related, but I have several games that were working, but now are not. When I loaded the 289 games last night, I had some duplicates of games previously loaded. So I went through them all in the admincp arcade games list and deleted out duplicates from the arcade. It looks like that delete process may have also killed the original good versions. The games are still listed, but the gifs for these games dont show up and when you click to play one of those games, the window opens, but it is blank.
Thanks for your help. People on my site love this arcade. Got a few that I think may go blind from so much playin. LOL