FileReference.upload

[Mr. Fixit]

import flash.net.FileReference; 
import mx.utils.Delegate;

class site.UploadFiles {

	var listener:Object;
	var imageFile:FileReference;
	public var txxt:String
	private var _tf:TextField;
	function UploadFiles(_tf:TextField) {
		listener = new Object(); 
		imageFile = new FileReference(); 		

		listener.onSelect = Delegate.create(this, onSelectFile, imageFile);
		listener.onOpen = Delegate.create(this, onOpenFile, imageFile);
		listener.onComplete = Delegate.create(this, onCompleteFile, imageFile);

		imageFile.addListener(listener);
		
		this._tf = _tf;
	}
	
	function onSelectFile(selectedFile:FileReference):Void { 
		_tf.text = "Attempting to upload " + selectedFile.name; 
		selectedFile.upload("php/upload.php");
		trace(selectedFile);
	}; 

	function onOpenFile(selectedFile:FileReference):Void { 
		_tf.text = "Uploading " + selectedFile.name; // 2 step
	}; 

	function onCompleteFile (selectedFile:FileReference):Void {
		_tf.text = "Upload finished.";
	}; 
 
	function uploadImage():Void {
		imageFile.browse([{description: "Image Files", extension: "*.jpg;*.gif;*.png"}]); 
	}
}

почему то не грузит картинки.. останавливается на 2м шагу..
с пхп все правильно.