Header in Photolio theme

Currently i’m using the following theme for wordpress.
http://easysite.by/?theme=photolio
I will be grateful if someone could direct me on how to insert a header sidebar, or content area sidebar to put just a search widget. Actually are present only blog sidebar, page sidebar, portfolio sidebar and contants sidebar.
I tried to use the plug-in without any success.

Thanks in advance to you that can help me.

Cheers,
Dario

https://wordpress.org/plugins/content-aware-sidebars/