[noppid]

To avoid having the edit the template you can do this too. Both are only going to appear when the forum tab is active.

Populate $template_hook['navbar_start'] using hook process_templates_complete.

Create a new plugin on hook process_templates_complete

Use this php code. Edit the link as necessary.

PHP Code:

$template_hook['navbar_start'] = '<li><a href="' . $vbulletin->options['bburl'].'/index.php?' . $vbulletin->session->vars['sessionurl'] . '">Home</a></li>';