I need a Sidebar on my Comments page

I am currently using the default template for my comments.php page. I dont really like how the posts and comments are centered on the page and would like to insert my sidebar on the right and then the posts and comments on the left side. How do I go about doing this?

My main blog page is http://www.gamerentalguide.com/blog if this helps. Notice how my homepage looks. I would like my comments pages to look like this as well.

John