How to completely uninstall and start over w/ Support System

WP3.5.1 multisite subdomain multi-DB

I mistakenly installed and activated Support System without updating db-config.php in advance. While I went back and edited the config the plugin is not working on my site. from the dashboard trying to go to tickets takes to FAQ. I deactivated/uninstalled/installed/activated but no effect.

I need to completely get rid of all traces and try again.

can you advise if there are any DB tables/rows that would need to be deleted manually?