you can go into the sidebar, to where you want the link to show up, and put something like this:
<a href="http://www.yoursite.com">Home</a>
I’ve ended up figuring out my problem, and am posting for future reference. The above code is what I basically did, but there’s more because I wanted this link to match the formatting of the other page lists. Since the wp_list_pages function is used, I just inserted my home page link above it and added the list formatting. The full code is:
<li><h2>Pages</h2>
<ul>
<li><a href="http://www.joesflix.com">Main</a></li>
<?php wp_list_pages('title_li='); ?>
</ul>
</li>
Notice how the wp_list_pages is set to no heading, as I inserted it myself to squeeze in my link. Also, list_pages doesn’t need a
<li> code, it has it built in.