With this mod we add (not replace) forum button, when we have SPortal installed, to the Classic and Babylon themes.
Edit the file index.template.php at the Themes/classic directory
Find this code:
// 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] . '" border="0" />' : $txt[103]), '</a>', $context['menu_separator'], '
<a href="', $scripturl, '?action=help">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/help.gif" alt="' . $txt[119] . '" border="0" />' : $txt[119]), '</a>', $context['menu_separator'];
Replace with this code:
// Show the [home] button
echo '
<a href="', $scripturl, '">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/home.gif" alt="' . $txt[103] . '" border="0" />' : $txt[103]), '</a>', $context['menu_separator'];
// Show the [forum] button
if(!empty($context['portalactive']))
echo '
<a href="', $scripturl, '?action=forum">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/forum.gif" alt="' . $txt['sp-forum'] . '" border="0" />' : $txt['sp-forum']), '</a>', $context['menu_separator'];
// Show the [help] button
echo '
<a href="', $scripturl, '?action=help">', ($settings['use_image_buttons'] ? '<img src="' . $settings['images_url'] . '/' . $context['user']['language'] . '/help.gif" alt="' . $txt[119] . '" border="0" />' : $txt[119]), '</a>', $context['menu_separator'];
We do the same steps and find - replace the same code to the index.template.php at the Themes/babylon directory for the Babylon theme.