Hello,
Sorry we missed this topic earlier. Are you trying to load events by custom taxonomy and on certain custom taxonomies only show one event?
The tribe_get_events() function using get_posts so starting there may help out.
http://docs.tri.be/Events-Calendar/function-tribe_get_events.html
http://codex.wordpress.org/Template_Tags/get_posts
One way to do it, is in a custom loop, check what custom taxonomy the event has and if it matches one you only want to show one event you could exit the loop.
Also, fringearts if you could outline what you did to get yours working that could help other people looking to do the same thing in the future.
Thanks!