Top Menu links problem

Hi,

Mambo 4.5.2, Mambo-SMF 1.3.1.2

I have some problems with the links in the top menu ([Home][Help][Search][Login][Register]). I've tried to fix it but I don't understand how this works:

This is the code from /forum/Themes/default/index.template.php:

Code:

function template_menu()
{
global $context, $settings, $options, $scripturl, $txt;

// Show the [home] and [help] buttons.
echo '
<a href="', $scripturl, '">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/home.gif" alt="' . $txt[103] . '" style="margin: 2px 0;" border="0" />' : $txt[103]), '</a>', $context['menu_separator'], '
<a href="', $scripturl, '?action=help" target="_blank">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/help.gif" alt="' . $txt[119] . '" style="margin: 2px 0;" border="0" />' : $txt[119]), '</a>', $context['menu_separator'];

// How about the [search] button?
if ($context['allow_search'])
echo '
<a href="', $scripturl, '?action=search">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/search.gif" alt="' . $txt[182] . '" style="margin: 2px 0;" border="0" />' : $txt[182]), '</a>', $context['menu_separator'];

// Is the user allowed to administrate at all? ([admin])
if ($context['allow_admin'])
echo '
<a href="', $scripturl, '?action=admin">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/admin.gif" alt="' . $txt[2] . '" style="margin: 2px 0;" border="0" />' : $txt[2]), '</a>', $context['menu_separator'];

// Edit Profile... [profile]
if ($context['allow_edit_profile'])
echo '
<a href="', $scripturl, '?action=profile">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/profile.gif" alt="' . $txt[79] . '" style="margin: 2px 0;" border="0" />' : $txt[467]), '</a>', $context['menu_separator'];

// The [calendar]!
if ($context['allow_calendar'])
echo '
<a href="', $scripturl, '?action=calendar">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/calendar.gif" alt="' . $txt['calendar24'] . '" style="margin: 2px 0;" border="0" />' : $txt['calendar24']), '</a>', $context['menu_separator'];

// If the user is a guest, show [login] and [register] buttons.
if ($context['user']['is_guest'])
{
echo '
<a href="', $scripturl, '?action=login">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/login.gif" alt="' . $txt[34] . '" style="margin: 2px 0;" border="0" />' : $txt[34]), '</a>', $context['menu_separator'], '
<a href="', $scripturl, '?action=register">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/register.gif" alt="' . $txt[97] . '" style="margin: 2px 0;" border="0" />' : $txt[97]), '</a>', $context['menu_separator'];
}
// Otherwise, they might want to [logout]...
else
echo '
<a href="', $scripturl, '?action=logout;sesc=', $context['session_id'], '">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/logout.gif" alt="' . $txt[108] . '" style="margin: 2px 0;" border="0" />' : $txt[108]), '</a>';
}

The HTML code generated when I'm not logged:

Code:

Why the link generated for 'Register' is not SEF? The PHP code is similar to the other buttons...

And when I'm logged as admin:

Code:

The link for 'Admin' have target="new", I want to get rid of it but I cant find any reference of it in the PHP code.
Any ideas?

Alberto