Sorry about that.
I figured it out and I just thought I would post back here and let you know what I did in case someone has a similar problem.
I needed to create a conditional element ?? in order to pull the post id into the css id. Or something. It worked.
This is the code.
The link to the form:
<?php if ( is_home() ) : ?>
<span class="commentslink">Comment <a class="commentspop" href="#commentsform-<?php the_ID(); ?>">on this post</a></span>
<?php else : ?>
<span class="commentslink">Comment <a class="commentspop" href="#commentsform">on this post</a></span>
<?php endif; ?>
The beginning of the form code:
<div style="display: none;">
<?php if ( is_home() ) : ?>
<div id="commentsform-<?php the_ID(); ?>" class="commentsformhome">
<?php else : ?>
<div id="commentsform">
<?php endif; ?>