Habs endlich!
Hier ein demo_left.php
Beispiel: 
www.anlagen-planung.de/contenido/front_frame/
wird aber nicht immer funzen, da ich noch am Basteln mit de Knöpche bin. Die sind zu groß, und meine Farben wollen die auch nicht annehmen.
Also jetzt das Frame:
<?php 
include("config.php"); 
include($ContenidoPath."inc/config.php"); 
page_open( 
    array("sess" => "Contenido_Session", 
          "auth" => "Contenido_Frontend_Challenge_Crypt_Auth", 
          "perm" => "Contenido_Perm")); 
include($ContenidoPath.$cfgPathInc."cfg_sql.inc.php"); 
$db = new DB_Contenido; 
?> 
<html> 
<head> 
<script language="JavaScript"> 
function moveit(place1, place2) { 
        if (parent.frames[1].location.href != place1) { 
                                                        parent.frames[1].location.href = place1; 
                                                       } 
        if (parent.frames[2].location.href != place2) { 
                                                        parent.frames[2].location.href = place2; 
                                                      } 
                                  } 
</script> 
<style> 
<!-- 
a {font-size: 11px; color: black; font-family: Verdana; text-decoration: none} 
--> 
</style> 
</head> 
<body BACKGROUND="img_site/bg.gif" bgproperties="FIXED"> 
<?php 
// Gruppen einlesen // 
$sql = "SELECT A.idcat, A.parentid, A.preid, A.postid, B.name, B.public, B.visible, C.level FROM $cfgTab_cat AS A, $cfgTab_cat_lang AS B, $cfgTab_cat_tree AS C WHERE A.idcat=B.idcat AND B.idcat=C.idcat AND A.idclient='$client' AND B.idlang='$lang'"; 
$db->query($sql); 
while($db->next_record()){ 
  $con_tree[$db->f("idcat")][parent]  = $db->f("parentid"); 
  $con_tree[$db->f("idcat")][preid]  = $db->f("preid"); 
  $con_tree[$db->f("idcat")][postid]  = $db->f("postid"); 
  $con_tree[$db->f("idcat")][titel]  = $db->f("name"); 
  $con_tree[$db->f("idcat")][public]  = $db->f("public"); 
  $con_tree[$db->f("idcat")][visible]  = $db->f("visible"); 
  $con_tree[$db->f("idcat")][level]  = $db->f("level"); 
  $con_tree[$db->f("idcat")][link]  = $sess->url("front_content.php?client=".$client."&lang=".$lang."&parent=".$db->f("parentid")."&idcat=".$db->f("idcat").""); 
  if($db->f("idcat") > $con_tree_max){$con_tree_max = $db->f("idcat");} 
}; 
//-----------------------------------------------------------------------------// 
$nav_start = "1"; // Startbaum festlegen 
$nav_col_out = "#6699FF"; // Zellfarbe normal 
$nav_col_over = "#9999FF"; // Zellfarbe Mouse-Over 
$nav_col_back = "#6600FF"; // Hintergrundfarbe (Einzug) 
//$nav_col_on  = "font13"; // Farbmarkierung aktiv 
//$nav_col_off = "font11"; // Farbmarkierung passiv 
$nav_col_on  = "FF5A00"; // Farbmarkierung aktiv 
$nav_col_on_hover  = "#3FF200"; // Farbmarkierung aktiv hover 
$nav_col_off = "9C9C9C"; // Farbmarkierung passiv 
$nav_col_off_hover = "#0005E0"; // Farbmarkierung passiv hover 
$nav_button_folder = "img_site/menubuttons/";  // Ort der Buttons 
$nav_button_img_ext = ".png"; // Art der Buttons 
$bg = "#BEBCF0"; // Hintergrundfarbe Buttons 
//-----------------------------------------------------------------------------// 
// offenen Pfad finden // 
$nav_path = array(); $nav_tree = array(); 
$tmp_idcat = $idcat; 
while($tmp_idcat > 0){ 
  array_push($nav_path, $tmp_idcat); 
  $tmp_idcat = $con_tree[$tmp_idcat][parent]; 
}; 
$nav_path = array_reverse($nav_path); 
// gegen Verlassen des Baumes schützen: 
if($nav_path[0] != $nav_start){$nav_path = array($nav_start);}; 
// Baum sortieren // 
for($i = 0;$i < sizeof($nav_path);$i++){ 
  $tmp_found=0; 
  for($nr = 0; $nr <= $con_tree_max; $nr++){ 
    if($con_tree[$nr][parent] == $nav_path[$i] && $con_tree[$nr][preid] == '0'){$tmp_found=1;break;} 
  } 
  unset($tmp_level);$tmp_level = array(); 
  do{ 
    array_push($tmp_level , $nr); 
    $nr = $con_tree[$nr][postid]; 
  } while($nr != '0' && $tmp_found==1); 
  if($i == 0){$nav_tree = $tmp_level;} 
  else { 
    $x = array_search("$nav_path[$i]", $nav_tree); 
    array_splice($nav_tree, $x+1, 0, $tmp_level); 
  }; 
}; 
// Baum ausgeben // 
echo "<table width=\"160\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\">\n"; 
foreach($nav_tree as $nr){ 
   if(($con_tree[$nr][public] == '1' or $auth->auth["uid"] != "nobody") and $con_tree[$nr][visible] == '1'){ 
unset($mod_space);$mod_space = array(); 
    $mod_space = array_pad($mod_space,($con_tree[$nr][level] - 1),"  "); 
    echo "<tr><td valign=\"top\" nowrap>".implode("",$mod_space); 
    echo "<a href=\"".$con_tree[$nr][link]."\" target=\"main\" onClick=\"moveit('demo_left.php?idcat=$nr')\"";
    
   
 
if($nr == $idcat){ 
      $nav_button_image = $nav_button_folder.urlencode ($con_tree[$nr][titel]).$nav_col_on.$nav_button_img_ext; 
                  if (!file_exists ($nav_button_image)) { 
                  MakeImage ($bg, $nav_col_on, $con_tree[$nr][titel], $nav_button_image, $nav_button_img_ext); 
                  } 
      $nav_button_img_hover = $nav_button_folder.urlencode ($con_tree[$nr][titel]).$nav_col_on_hover.$nav_button_img_ext; 
                  if (!file_exists ($nav_button_img_hover)) { 
                  MakeImage ($bg, $nav_col_on_hover, $con_tree[$nr][titel], $nav_button_img_hover, $nav_button_img_ext); 
                  } 
} else { 
      $nav_button_image = $nav_button_folder.urlencode ($con_tree[$nr][titel]).$nav_col_off.$nav_button_img_ext; 
                   if (!file_exists ($nav_button_image)) { 
                   MakeImage ($bg, $nav_col_off, $con_tree[$nr][titel], $nav_button_image, $nav_button_img_ext); 
                   } 
      $nav_button_img_hover = $nav_button_folder.urlencode ($con_tree[$nr][titel]).$nav_col_off_hover.$nav_button_img_ext; 
                   if (!file_exists ($nav_button_img_hover)) { 
                   MakeImage ($bg, $nav_col_off_hover, $con_tree[$nr][titel], $nav_button_img_hover, $nav_button_img_ext); 
                   } 
}; 
   echo "  onMouseOut=\"MM_swapImgRestore()\"  onMouseOver=\"MM_swapImage('".$nav_button_image."','','".$nav_button_img_hover."',1)\""; 
   echo ">"; 
echo "<img name=\"".$nav_button_image."\" src=\"".$nav_button_image."\" border=\"0\"alt=\"".$con_tree[$nr][titel]."\"></a>"; 
echo "</td></tr>\n"; 
  }; 
}; 
unset($nav_tree);unset($nav_path); 
echo "</table>"; 
function ConvertColor($hexVal){ 
    $ColorVal = array(3); 
    for($i = 0; $i < 3; $i++) 
      $ColorVal[$i] = HexDec(substr($hexVal, $i * 2, 2)); 
    return $ColorVal; 
  } 
   function MakeImage($bg, $fg, $txt, $image, $nav_button_img_ext){ 
  $width = 140; 
  $offset = 20; 
$imgFRAME = ImageCreate($width, $offset); 
  list($red, $green, $blue) = ConvertColor($bg); 
  $bgCOLOR = ImageColorAllocate($imgFRAME, $red, $green, $blue); 
  list($red, $green, $blue) = ConvertColor($fg); 
  $fgCOLOR = ImageColorAllocate($imgFRAME, $red, $green, $blue); 
imagettftext($imgFRAME, 10,0,2,15,$fgCOLOR,"ttf/verdana.ttf",$txt); 
if ($nav_button_img_ext == ".png") { 
  ImagePng($imgFRAME, $image); 
  } 
  if ($nav_button_img_ext == ".gif") { 
  ImageGif($imgFRAME, $image); 
  } 
  if ($nav_button_img_ext == ".jpg") { 
  ImageJPG($imgFRAME, $image); 
  } 
  ImageDestroy($imgFRAME); 
} 
?> 
</body> 
</html>