| 1. | conf_has_items | Link items to their containing conferences |
| 2. | confhidden | User wants to hide a conf (not show in conf list) |
| 3. | conforder | Conference order override |
| 4. | confs | Confs |
| 5. | site_data | "Variables" about site, conferences, items. |
| 6. | user_in_conf | When were users in what conferences? |