Single Post Modifications

Add this to your style.css file:

div#content_wrap {
    float: none;
    margin: 0 auto;
}

That worked but it also did that on my homepage, which is not what I want. I only want that change to take effect on single post pages.

Okay, try changing the above to:

.single-post div#content_wrap {
    float: none;
    margin: 0 auto;

Sweet! It worked! Now let me ask you this: How would I go about making it so where images are one size on the front page and another on the single post page?

For instance, I need my images to be 610x wide on the front page because there is a sidebar. But on the single post pages I want it to be a bit bigger because there is no sidebar and it would make the posts feel more like features.

Unless your theme automatically resizes images, it should not be a problem – just upload the size that you want. Be sure it’s not wider than the content section, though, or it will likely have problems. I’m not familiar with that theme, so I can’t say more specifically.

Or do you mean you want then entire content section on the single-pages to be wider?

My theme does automatically re-size images