[h]How to change featured image?[/h]

Once you're logged in navigate to Appearance > Theme Options and click on Homepage tab where you will see this:



and it says: Paste your video or image source

Image Source will be something like this:

<img class="aligncenter" src="http://themeid.com/wp-content/themes/responsive/images/featured-image.png"; width="440" height="300" alt="" />

and if you want e.g. YouTube Video it would be this part:

<iframe width="440" height="253" src="http://www.youtube.com/embed/30RnwSg-KrI?rel=0"; frameborder="0" allowfullscreen></iframe>

Just make sure that you change the width to 440px directly from YouTube and height will be automatically changed to 253px.