Change $tabs text on pages of your drupal theme

Change the text in $tabs on specific pages using this snippet in your template.php file. (if you haven't got a template.php file in your themes/your-theme folder, create one using notepad and upload to yoursite.com/themes/your-theme.
Snippet:
<?php
function _phptemplate_variables($hook, $vars = array()) {
    if ($hook == 'page') {
        // for user profile page tabs
        if (arg(0) == 'user') {
            $vars['tabs'] = str_replace('Edit', 'Edit Account', $vars['tabs']);
        }
        return $vars;
    }
    return array();
}
?>