Good news: You can apply the following code:
Replace:
foreach ($fullPath as $path)
{
$title[] = $path;
}
with:
$title[] = array_pop($fullPath);
Bad news : there is no override path as far as i remember. So you will have to hack the core file. Before doing so ask the developers of SH404SEF if there is a path for overrides, just in case.