diff -urN functions.orig/tree.php functions/tree.php
--- functions.orig/tree.php	Sat Feb  4 00:27:47 2006
+++ functions/tree.php	Sat May 13 23:58:09 2006
@@ -121,7 +121,12 @@
 function walkTreeInPreOrderDeleteFolders($index, $imap_stream, $tree) {
     if ($tree[$index]['doIHaveChildren']) {
         for ($j = 0; $j < count($tree[$index]['subNodes']); $j++) {
+	    if (($index != 0) or ($tree[$index]['value'] != $tree[$tree[$index]['subNodes'][$j]]['value'])) {
             walkTreeInPreOrderDeleteFolders($tree[$index]['subNodes'][$j], $imap_stream, $tree);
+	    } else {
+	    $new_index = $tree[$index]['subNodes'][$j];
+            walkTreeInPreOrderDeleteFolders($tree[$new_index]['subNodes'][$j], $imap_stream, $tree);
+	    }
         }
         sqimap_mailbox_delete($imap_stream, $tree[$index]['value']);
     } else {
@@ -151,7 +156,12 @@
         // after copy close the mailbox to get in unselected state
         sqimap_run_command($imap_stream,'CLOSE',false,$response,$message);
         for ($j = 0;$j < count($tree[$index]['subNodes']); $j++)
+	    if (($index != 0) or ($tree[$index]['value'] != $tree[$tree[$index]['subNodes'][$j]]['value'])) {
             walkTreeInPostOrderCreatingFoldersUnderTrash($tree[$index]['subNodes'][$j], $imap_stream, $tree, $topFolderName);
+	    } else {
+	    $new_index = $tree[$index]['subNodes'][$j];
+            walkTreeInPostOrderCreatingFoldersUnderTrash($tree[$new_index]['subNodes'][$j], $imap_stream, $tree, $topFolderName);
+	    }
     } else {
         sqimap_mailbox_create($imap_stream, $trash_folder . $delimiter . $subFolderName, '');
         $mbx_response = sqimap_mailbox_select($imap_stream, $tree[$index]['value']);
@@ -180,4 +190,4 @@
         echo $tree[$index]['value'] . '<br />';
     }
 }
-?>
\ No newline at end of file
+?>