Safe-site verification for a wordpress.com blog.

I am new to computers and blogging, so I'm not too familiar with terms (I have a wordpress.com blog). There is a grey-box-question-mark beside my (cloudwalkingblog.com) site address. eventually I found that I need verification to get a green safe-site mark. So I registered, and followed the necessary steps. However, when I got to the copy/paste step, I found their is no place on my homepage to put the required meta tag..."Please Help!" I would really like people not to avoid my site because of a grey-box-question-mark....."Thank you!"....MR-1