I'm trying to do this, but have no idea where/how to find the page I should be inserting this to. Do I go to my CPanel & find a page (which?) & edit/insert from there?
You can activate your account by adding your unique PHP code inside your blog template. The best place is to add it in the sidebar template so the links will appear in the sidebar along with the other links.
First you do is copy your unique code here below:
<?php @include "http://www.thebloglinkexchange.com/link.php?userId=349"; ?>
Copy the selected code and place it somewhere in the sidebar template where you want to display the links.