Is this not actually possible then? I've spent hours searching the internet and all I seem to find is instructions on how to install a plugin or vague code snippets without detail on where to put them.

Thank you for replying!!!

Nothing happens. I think I'm stuck because I don't understand what the options are asking for. (Image here: http://imgur.com/EZYMx&lIfrN)

Specifically where it asks for the page navigation and next link selector. I'm sure something in index.php needs to be changed but I can't figure out what. I'm currently using the WP Page Numbers plugin for pagination, I want to change that to use the Infinite Scroll plugin. Here is the blog I'm trying to get this to work with: http://www.aarongmoore.com/blog

Here is the code that is in my index.php right now:

  <div id="contentbg">
  <div id="content">

    <?php if (have_posts()) : ?>
      <?php while (have_posts()) : the_post(); ?>
      <?php the_date('l, jS F, Y', '<p class="the_date"><span>', '</span></p>'); ?>
      <div class="post">
        <h2><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
        <p class="postby">Posted by <b><?php the_author() ?></b> at <?php the_time('g:i A') ?></p>
        <?php the_content(); ?>
        <p class="commenttag"><?php comments_popup_link('No Comments', '1 Comment', '% Comments'); ?></p>
        <p class="tags"><?php the_tags( 'Tags: ', ', ', '.' ); ?></p>
      </div>
      <?php endwhile; ?>

      <?php if (  $wp_query->max_num_pages > 1 ) : ?>
        <div class="pagination">
              <?php if(function_exists('wp_page_numbers')) : wp_page_numbers(); endif; ?>
        </div>
      <?php endif; ?>


    <?php else : ?>
    <?php endif; ?>

  </div>
</div>

I don't understand what this:

You might need to use this function instead: http://codex.wordpress.org/Function_Reference/paginate_links

The infinite scroll seems to ask for a link in the index.php code but I thought that link was created using php in wordpress. Do I need to add a link or a div around some part of the index.php code?

What do I put in for the "next selector" in that options page? I'm presuming I need to change something in index.php but I still don't understand what that is.

Does anyone know what to put in the "next selector" section to get infinite scroll to work? Do I need to change something in the index.php file code?

I thought I'd need to change the type of pagination but I'm not sure what to change it too. I've searched online and none of the articles about infinity scroll explain how to set up the required pagination. I'm hoping someone here will be able to tell me what to do.

Yay! Sorry I couldn't delve into it deeper, only have so much time while working to hop onto the forum.