For anyone else who want to have a page show you the_excerpt() by default on any single page and then be able to click a more link to see the rest of the article without leaving the same page.
This code needs to go in your loop.
<! Notice im appending &contentType=1 to the permalink() URL />
<h2><a href="<?php the_permalink(); ?>&contentType=1" title="<?php the_title(); ?>"><?php the_title(); ?></a></h2>
<! pull contentType=1 into the $content variable. />
<?php $content = $_GET[contentType]; ?>
<! show the page with full content because $content==1 />
<?php
if ($content==1)
the_content();
else
the_excerpt_rereloaded('80','More','<strong><em>','div');
?>
I used the_excerpt_rereloaded plugin and modified the php plugin file to include &contentType=1 after the_permalink(); ?> so their more link appends to the URL also.
You can use any excerpt plugin or built in function just by appending tot he permalink() as described.
Good luck…