Fix VertNav Category selection
<?php
$URL="http://www.panticz.de/sites/default/files/magento/VertNav/VertNav_getCurrentCategory.diff";

echo "<div><pre>";
</pre></div>

$c = curl_init();
curl_setopt($c, CURLOPT_URL, $URL);

echo htmlspecialchars(curl_exec($c));

curl_close($c);

echo "";

?>

remove duplicate base files

rm -r /var/www/app/design/frontend/base/default/template/vertnav/

Links
http://www.magentocommerce.com/magento-connect/vertical-navigation-with-css-classes.html - Download on Magento Connect
http://www.magentocommerce.com/boards/viewthread/244440/#t359105 - Bug report "Blocks HTML output cache error"