How do I create and theme an image link in Drupal 7 Views?
This doesn't directly answer your two questions but should help...

The Views documentation on template overrides doesn't need to be particularly good...as those overrides are self documenting.

Open up any View for edit, open the Advanced fieldset, and click "Theme: Information" at the bottom.

You'll get something like this:



A complete list of every template file available for every field, and the view itself. From there you should be able to experiment quite quickly to find the template name you're looking for.