Try this.
Open index.php and locate this near the top:
if (!empty($template)) {
$clickstream = "<a href=\"".$site_sess->url(ROOT_PATH."index.php")."\">".$lang['home']."</a>".$config['category_separator'].str_replace("_", " ", ucfirst($template));
$site_template->register_vars("clickstream", $clickstream);
$site_template->print_template($site_template->parse_template($main_template));
include(ROOT_PATH.'includes/page_footer.php');
}
Change it to:
if (!empty($template)) {
$clickstream = "<a href=\"".$site_sess->url(ROOT_PATH."index.php")."\">".$lang['home']."</a>".$config['category_separator'].str_replace("_", " ", ucfirst($template));
$sender_name = ($user_info['user_level'] != GUEST) ? $user_info['user_name'] : "";
$sender_email = ($user_info['user_level'] != GUEST) ? $user_info['user_email'] : "";
$site_template->register_vars(array(
"sender_name" => $sender_name,
"sender_email" => $sender_email,
"clickstream" => $clickstream
));
$site_template->print_template($site_template->parse_template($main_template));
include(ROOT_PATH.'includes/page_footer.php');
}
Now you can use {sender_name} and {sender_email} in your template.