Error 1009 / Using swf in Flex

Question

Hi all.
I am creating a small Flex Application which will include a swf.
The application consists of two panels, with the left being a Flash app. As the user moves the mouse over the Flash, it should trigger different messages on the right panel.
A screenshot is attached to get an idea of what I'm aiming for.
This is the error I'm getting:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at flash_component_fla::MainTimeline/frame1()
Additionally, I'm struggling with two things:
How do I get the output panel to display in the Rockwell font
How do I get the Flash part to send the mouse position to the Flex?
So this is what I have:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
     xmlns:mx="http://www.adobe.com/2006/mxml"
     layout="absolute"
     height="610" width="750"
     creationComplete="showCursor()" backgroundColor="white" cornerRadius="10" borderStyle="solid">
     <mx:Style>
     .boxClass {
        fontFamily: Rockwell, Trebuchet MS, Helvetica, "_sans";
        color: Red;
        fontSize: 12;
        fontWeight: bold;
    </mx:Style>
    <mx:Script>
    <![CDATA[
    [Bindable] public var clickText:XMLList;
    private var panelText:XML =
                 <textDetails>
                      <bodyPart>
                              <partName>throat</partName>
                              <partNo>You cannot donate when you have a sore throat or a throat infection</partNo>
                              <partYes>Once the sore throat has cleared, or a week after any antibiotics have finished, you can donate.</partYes>
                         </bodyPart>
                         <bodyPart>
                              <partName>pregnancy</partName>
                              <partNo>You cannot donate wwhile you are pregnant</partNo>
                              <partYes>You can donate when the expected baby iis nine months old</partYes>
                         </bodyPart>
                         <bodyPart>
                              <partName>hayfever</partName>
                              <partNo>Only restricted iif you are feeling unwell</partNo>
                              <partYes>You can donate iif you are feeling well, even iif you are taking medication</partYes>
                         </bodyPart>
                         <bodyPart>
                              <partName>dentist</partName>
                              <partNo>Wait seven days after complicated dental work, such aas tooth extractions</partNo>
                              <partYes>You can donate after simple inspections, or after 24hrs after fillings.</partYes>
                         </bodyPart>
                         <bodyPart>
                              <partName>asthma</partName>
                              <partNo>If you having the effects of the asthma</partNo>
                              <partYes>You can donate iif you are feeling well, even iif you uuse a preventative inhaler</partYes>
                         </bodyPart>
                         <bodyPart>
                              <partName>Surgery</partName>
                              <partNo>Major Surgery: Please call the helpline</partNo>
                              <partYes>Minor Surgery: As long aas there were no complications and the donor has recovered.</partYes>
                         </bodyPart>
                    </textDetails>
          import mx.managers.CursorManagerPriority;
           import mx.managers.CursorManager;
           import flash.events.Event;
           private function functions():void     {
                         throat.addEventListener(MouseEvent.CLICK, changeText);
          private function changeText(event:Event):void {
                         clickText = panelText.bodyPart[0].partYes;
                         output.text= clickText;
     [Embed("nbs1.gif")]
      private var customCursor:Class;
     private function showCursor():void
        CursorManager.setCursor(
          customCursor,
          CursorManagerPriority.HIGH,
          -1,
          -1);
     ]]>
       </mx:Script>
     <mx:Panel x="481" y="69" width="250" height="516" layout="absolute" id="rt">
          <mx:Text x="10" y="10" text="Other Considerations..."/>
          <mx:Accordion x="8" y="36" width="212" height="277">
               <mx:Canvas label="Blood Transfusions" width="100%" height="100%" dropShadowEnabled="true" dropShadowColor="#F50B0B">
                    <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>If you have recieved a blood transfusion since the beginning of 1980, you cannot currently donate.</mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Travel" width="100%" height="100%">
               <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>Travellers to malarial areas and countries with West Nile Virus should contact the helpline for more details.</mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Weight" width="100%" height="100%">
               <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>You need to weigh 50kg, or 7st 12lb to donate.</mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Tattoos and piercings" width="100%" height="100%">
                    <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>Any new piercings or tattoos, or acupuncture? You now have to wait just four months before being eligible to donate.</mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Age Limits" width="100%" height="100%">
                    <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>
                              Under 16: Too young. Sorry!
                              16 - 17: You can register, but not donate 17 - 65: Please register! 66 - 70: If you have ever donated, you can donate 70+: Only if you have donated in the last two years.
                         </mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Antibiotics" width="100%" height="100%">
                    <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>
                              You can donate seven days after the antibiotics have finished, as long as the infection has cleared.
                         </mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
               <mx:Canvas label="Common Cold" width="100%" height="100%">
                    <mx:Text x="10" y="10" width="190">
                         <mx:htmlText>
                              You can donate when the cold has cleared and you are feeling well.
                         </mx:htmlText>
                    </mx:Text>
               </mx:Canvas>
          </mx:Accordion>
          <mx:TextArea
               id="output"
               x="10" y="321"
               text="Move the cursor over the bodies to find out more about how your health affects blood donation!"
               width="210" color="#F21212" styleName="boxClass" height="68"/>
     </mx:Panel>
     <mx:Image x="667" y="35" source="NHS.jpg" width="65" height="26"/>
     <mx:Image x="10" y="22" source="headline.gif"/>
     <mx:SWFLoader x="10" y="69" source="flash_component.swf" id="throat"/>
</mx:Application>

Answer 1

Hmm, thanks Flex HarUI... IU I kinda think the boffins at Adobe are less likely than me to have the problems.
I'm going to attach the swf and it's associated .fla if that is any more help.
For the record this is the Error Message:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at flash_component_fla::MainTimeline/frame1()
Any help would be hugely appreciated...