Template Overrides for emails not working

I'm constantly making some changes to the email templates in order to show the Category and the cover pic in the email.

The email template override wasn't working , it creates the file, but it doesn't use it.

This is how I modded it to look
http://i.imgur.com/hhmLfmx.png

You'll notice Category with link above the title and a cover image with link to blog as well.

I think it would be good to have those standard, (or as an option) but until then could you fix the template overrides.

Thanks