@AntonNiklasson, I may be in the minority, but I respectfully disagree with you. I find a link to an actual live page/site is far better than a test bed. If a live page is not available, then I agree and think a test bed is better than just posting code (or worse an image, or still worse just trying to describe the problem).

@Ranger, I'm not a wordpress guy, but I can think of three things you could try. The simplest is to use a caption on the image. I believe WP will then wrap the image in a div instead of p. The caption could be just a single space, or you could use CSS to hide the caption with .wp-caption-text {display: none}.

The second thing you could do is use jquery to add a class to p's that have img.

$(document).ready(function() {
    $('p').has('img').addClass('image');
});

should work.

The third and most technical would be to edit the functions.php so that images would be wrapped in an element of your chosing.

// img unautop
function img_unautop($pee) {
    $pee = preg_replace('/<p>\\s*?(<a .*?><img.*?><\\/a>|<img.*?>)?\\s*<\\/p>/s', '<div class="figure">$1</div>', $pee);
    return $pee;
}
add_filter( 'the_content', 'img_unautop', 30 );

courtesy Robert O'Rourke

@wolfcry911, I'll give that a try. If I can successfully get the images wrapped in divs instead of p's, that would be great.

@Paulie_D, As far as I'm aware, everything in a wordpress post is wrapped in it's own p tag. It's true the post as a whole is wrapped in it's own div, but each element inside is wrapped in a p tag including each paragraph and image. (images also have an img tag inside said p tag).