I think many people had this question about having thumbnails for posts and I did not find an answer except the documentation shows exactly this in the readme.txt
"Add the following code wherever you'd like the image to appear: `<?php tern_wp_youtube_image(); ?>"
I would appreciate if someone can help me with where exactly is this wherever? which .php file, because there are 20 php fles in this plugin. Please help me
Also, even though I set not to post automatically, it seems like the videos are automatically added to my site. Any help with this will also be appreciated. I really tried looking for answers to my questions online for 2 days before posting the question.