Like I told you in the PM, The index.tpl and view_video.tpl files are the original ones from your vShare installation.
Those are the two files that you need to look at.

The featured videos become inactive when you feature them from the admin section, you must then manually reactivate them in order for them to show.
As far as related videos, I'm not quite sure, but my advice would be to post more videos on your site using the same username and similar tags and/or titles and see if they start showing up.

Thanks really all I can think of.

I hope that helps.

Mike