If you don't have thesis then you need to grab the code out and place it in your single.php file. Place it exactly where you want it to go..for example here is code to add your own share bar to WordPress. This code goes into the single.php
The Css goes into the main Css file.
If this code was for thesis it would look like this:
<?php }}add_action('thesis_hook_before_post_box', 'scroll_bar_before');