I have theme which shows some default theme in it.The themes name is Flow Hub.In first page and all of the other pages I have a default image there.But my requirement is to replace that default image in there,with the image which I am inserting with the Post.
It could be thumbnail or any of the size.
Please suggest how to do it and achieve this with an ease.
Thanks in advance.
how to insert an image into a post , YouTube tutorial
http://www.youtube.com/watch?v=c–FXmLJ59A