Hi all, I think I found the problem:
On the file wp-dtree.php on line 318 the original code is:
$cd = ‘<script type=”text/javascript” src=”‘.WP_PLUGIN_URL.’/wp-dtree-30/dtree.php?witheff=’.$wpdtreeopt[‘effopt’][‘effon’].’&eff=’.$wpdtreeopt[‘effopt’][‘efftype’].’&effdur=’.$wpdtreeopt[‘effopt’][‘duration’].'”></script>’.”\n”;
So I think you change the sub directory name to wp-dtree so the new code must be:
$cd = ‘<script type=”text/javascript” src=”‘.WP_PLUGIN_URL.’/wp-dtree/dtree.php?witheff=’.$wpdtreeopt[‘effopt’][‘effon’].’&eff=’.$wpdtreeopt[‘effopt’][‘efftype’].’&effdur=’.$wpdtreeopt[‘effopt’][‘duration’].'”></script>’.”\n”;
This solves the problem for me.
Regards