Facebook Insights Meta Tag in WordPress Blog

Hello:

I am trying to add Facebook Insights to my WordPress blog but I’m not sure how to add this meta tag to my blog. It says I am supposed to add it to my root webpage. Inside my admin panel, do I go to >Appearance and then to >Editor and then edit the [Main Index Template (index.php)]?

Obviously, I am not too good at editing these types of files inside my blog but if someone can tell me if I am going to the right place to edit, which file I need to edit and possibly where to paste the meta-tag in, I should be okay. My blog URL is: Missing Persons United States

This is what Facebook tells me to do:

Add a meta tag to your webpage
Gain access to insights for your website by adding a fb:admins, fb:page_id, or fb:app_id meta tag to your root webpage, linking it to your personal account or an application.

This is the meta-tag that needs pasted:

<meta property=”fb:admins” content=”1306662556″ />

There is not much to the meta-tag and instructions, and that is all Facebook offers on the Insights Page.

Thanks in advance for the help!

RealEstateGuy