Accessing Node Labels - TreeControl with CheckBoxes

Question

Hello,
I have a Tree component that is loaded with CheckBoxes.  Each node has a label associated with it, and I need to be able to collect the labels and display them on the right of the component - probably using a Label or Text control.
I can't seem to figure out how to access the names of the items that are checked.  I'm including a complete, and simplified, mxml file.  If anyone would like to take a look at it, I would appreciate it.
Thanks.
OH - And I am using the Tree CheckBox component from this site:  http://www.sephiroth.it/file_detail.php?id=151
Sorry, but the forum will not allow me to upload the files directly.
You will probably need to add those classes to see the Tree CheckBox.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:controls1="it.sephiroth.controls.*">
    <mx:Script>
        <![CDATA[
            import mx.events.DataGridEvent;
            import mx.controls.dataGridClasses.DataGridColumn;
            import mx.effects.easing.Bounce;
            import mx.effects.easing.Elastic;
            import components.MyPanel;
            import mx.effects.easing.Bounce;
            import mx.effects.easing.Elastic;
            import mx.events.MenuEvent;
            import mx.controls.Alert;
            import mx.controls.Menu;
            import mx.events.CloseEvent;
            import mx.controls.*;
            import mx.events.ListEvent;
            import mx.events.TreeEvent;
            import it.sephiroth.renderers.TreecheckboxItemRenderer;
            //*******************************  TREE CONTROL CHECKBOX ******************************************
             * Called on checkbox click
             * check and update for both parents and child nodes
             * according to the checkbox status
            private function onItemCheck( event: TreeEvent ): void
                updateParents( event.item as XML, ( event.itemRenderer as TreecheckboxItemRenderer ).checkBox.checkState );
                updateChilds( event.item as XML, ( event.itemRenderer as TreecheckboxItemRenderer ).checkBox.checkState );
             * @see it.sephiroth.controls.CheckBoxExtended#checkState
            private function updateChilds( item:XML, value: uint ):void
                var middle: Boolean = ( value & 2 << 1 ) == ( 2 << 1 );
                var selected: Boolean = ( value & 1 << 1 ) == ( 1 << 1 );
                if( item.children( ).length( ) > 0 && !middle )
                    for each(var x: XML in item.node )
                        x.@checked = value == ( 1 << 1 | 2 << 1 ) ? "2" : value == ( 1 << 1 ) ? "1" : "0";
                        updateChilds( x, value );
            private function updateParents( item: XML, value: uint ): void
                var checkValue: String = ( value == ( 1 << 1 | 2 << 1 ) ? "2" : value == ( 1 << 1 ) ? "1" : "0" );
                var parentNode: XML = item.parent( );
                if( parentNode )
                    for each(var x: XML in parentNode.node )
                        if( x.@checked != checkValue )
                            checkValue = "2"
                    parentNode.@checked = checkValue;
                    updateParents( parentNode, value );
        ]]>
    </mx:Script>
    <!--*********************  CHOOSE FUNCTIONAL AREAS/CAPABILITIES FOR SCENARIO TREE DATA ******************-->
    <!--
        Example of the xml used as dataprovider
        for the treecheckbox component.
        @label used for the item label
        @checked used for the checked status:
            0 = un-checked
            1 = selected
            2 = 3rd status selected
            otherwise you can use the set the "checkField" attributes of the
            treecheckbox component to specify which xml attribute to use for the
            checked status
    -->
        <mx:XML xmlns="" id="treeSource">
            <node label="home" checked="">
                <node label="First Responder" checked="">
                    <node label="1RSP First Responder - Medical" checked=""/>
                </node>
                <node label="Battalion Aid Station/Sick Call" checked="">
                    <node label="Battalion Aid Station" checked=""/>
                    <node label="BAS - NBC" checked=""/>
                    <node label="Evac" checked=""/>
                </node>
                <node label="Forward Resuscitative Surgery (FRSS)" checked="">
                    <node label="Pre-Op" checked=""/>
                    <node label="Operating Room" checked=""/>
                    <node label="Post-Op" checked=""/>
                    <node label="Evac" checked=""/>
                </node>
                <node label="Surgical Company" checked="">
                    <node label="Triage/SST" checked=""/>
                    <node label="Triage Evac" checked=""/>
                    <node label="Operating Room" checked=""/>
                    <node label="OR Evac" checked=""/>
                    <node label="OR Evac" checked=""/>
                    <node label="Ward" checked=""/>
                    <node label="X-Ray" checked=""/>
                    <node label="Laboratory" checked=""/>
                    <node label="Pharmacy" checked=""/>
                    <node label="NBC Unit" checked=""/>
                    <node label="Dental" checked=""/>
                    <node label="PMO/EHO/PMT" checked=""/>
                    <node label="PM Entomology" checked=""/>
                    <node label="Occupational and Environmental Healty Sur" checked=""/>
                </node>
            </node>
        </mx:XML>
        <controls1:TreeCheckBox id="mytree"
            showRoot="false"
            width="345"
            height="100%"
            dataProvider="{treeSource}"
            openItems="{treeSource..node}"
            labelField="@label"
            checkField="@checked"
            itemCheck="onItemCheck( event )"
        />
        <mx:Label x="455" y="48" text="Label" fontSize="16" color="#FFFFFF" id="tree_label1"/>
</mx:Application>

Answer 1

Natasha,
Thanks for your reply.
I attempted the code:
public function get labelText():String 
 if (this.label != null) 
return this.label.text 
else
 return ""; 
return "";
But when I try to access the code in the application I get the error "Call to possibley undefined method labelText."
I'm not sure I understand exactly how to implement this change within the application itself.  Could you explain?  Thanks.