Each piece of the sidebar is implemented as a plugin. If you want to edit the order of the site-wide sidebar (as opposed to the ones for each conference, which can be controlled using the manager’s setup interface) you’ll have to work with the plugin_settings table. See setting_value = 'enabled' and setting_value = 'seq' for the plugins you want to adjust.
Regards,
Alec Smecher
Public Knowledge Project Team