Hello christevenson,
Looks like your template is missing a div or two. If you wrap your page content in these div:
<div class="wrap_fullwidth" id="main">
<div class="center" id="grid">{tag_pagecontent}</div>
</div>
it will center your content and give it a width of 940, along with the white bg. Though you will have to change the color of your text then.
If you don't want the white bg, do not use the id="main" surrounding div.
This should fix the length of your lines.
You may also want to use <p>, <h2> tags for paragraphs and headings instead of just using an unordered list for page content.
Hope this helps,
Chad Smith | http://bcgurus.com/Business-Catalyst-Templates for only $7
