How do I override (correctly, without hacking core files)

How do I override (correctly, without hacking core files) the default layouts and verbiage for Events+ templates?

A) It would be very helpful to have a CSS style reference guide as well as functions or hooks for displaying event information in a different order.

B) The default text for events (buttons and dialogs) isn't hardly useful as it is. Is there a way to change that without editing core plugin files?

C) If I want to use a specific wordpress theme template (like, taxonomy-event.php etc) to display events specifically and have a custom sidebar, what's the best way to do that?

Thanks in advance, I hope you can help me modify this plugin to suit my exact needs.