move Newsletter Subscriptions

It is possible to do with the following code in site.php file (http://www.amember.com/docs/Site.php_file)

Code:

Am_Di::getInstance()->blocks->remove('member-main-newsletter');
Am_Di::getInstance()->blocks->add(new Am_Block(array('member/main/right', 'unsubscribe'),
    ___('Newsletter Subscriptions'),
    'member-main-newsletter', Am_Di::getInstance()->modules->loadGet('newsletter'),
    'member-main-newsletter.phtml', Am_Block::MIDDLE));

Do you mean you want to get rid of drop down menu and just use two separate items in top level menu?
In this case you can use this code in site.php:

Code:

Am_Di::getInstance()->hook->add(Am_Event::USER_MENU, function(Am_Event $e) {
    $m = $e->getMenu();
    if ($p = $m->findOneBy('id', 'helpdesk-root')) {
        $_ = $p->toArray();
        $m->removePage($p);
        $m->addPages($_['pages']);
    }
});

You can use code that I gave you. It do exactly what you need.