Dynamic points and labels

[dldeskins at GMAIL.COM]

I have written a function that is used place points dynamically on a map
from session variables:
 function addPoints(&$map,&$image,$xCoor,$yCoor, $symbol, $text)
 {
  $my_layer = ms_newLayerObj($map);
  $my_layer->set("name", "myLayer");
  $my_layer->set("type", MS_LAYER_POINT);
  $my_layer->set("status", MS_ON);

  $my_layer->set(transparency, 75);
  $pt = ms_newPointObj();
  $ln = ms_newLineObj();
  $shp = ms_newShapeObj(MS_SHAPE_POINT);
  // these are pixel coordinates because TRANSFORM is FALSE

  $pt->setXY($xCoor, $yCoor);
  $ln->add($pt);
  $shp->add($ln);

  $my_class = ms_newClassObj($my_layer);
  $my_class->label->set("font", "arial-bold");
  $my_class->label->set("type", MS_TRUETYPE);
  $my_class->label->set("size", 7);
  $my_class->label->color->setRGB(255, 0 , 0);
  $my_class->label->backgroundcolor->setRGB(255, 255 , 255);
  $my_class->label->set("position", MS_LC);
  $my_class->label->set("force", MS_TRUE);

  $my_class->label->set("partials", MS_TRUE);
  $my_class->label->set("buffer", 0);
  $shp->set("text", stripslashes($text));

  $my_style = ms_newStyleObj($my_class);

  if($symbol == "g")
  {
   $my_style->set("symbolname","star_green");
  }
  elseif($symbol == "b")
  {
   $my_style->set("symbolname","star_blue");
  }

  $my_layer->addFeature($shp);
  $my_layer->draw($image);

 }

The symbols are showing in the proper place. The problem that I am having is
that the label will not show. Can anyone see a problem with the function?  I
would eventually like to set the font, color, size dynamically also.

Thanks