Hey,
unless you have specifically defined a page/post as being home, I expect the home button comes from the theme and there will be a line that looks somewhat like this….
<li><a> href="<?php bloginfo('url'); ?>" title="Home">home</a></li>
But looking at your site it looks like the Pages are in the sidebar, so I expect you will need to look in sidebar.php to find this.
there will most likely be a
<?php wp_list_pages(); ?>
just after it as I expect the pages area is hardcoded in your theme and not a widget.
So yeah, keep looking in the sidebar file, it should hold your solution.
regards
Andy
ps. check out audiopleasures and djbynar, both up your street looking at your content.