please Help me in solving this issue. i am a newbie to coldfusion

i want to use a single home page where i will show a form (which is in another file) to user to upload a file,after uploading (action file result) i want to show result of upload also on the same page.

these are my three files:

1. index.cfm

<!-- start -->

<html>

<head>

<title>HomePage</title>

<cfajaximport tags="CFFORM">

</head>

<body>

<cfdiv id="Main" style="width:1000px; height:600px" >

        <cfdiv id="Options" style=" width:100%;height:20%" >

            Welcome Admin, <a href="javascript:ColdFusion.navigate('FileUpload.cfm','Content')" class="settings">Update  </a><a href="#" class="logout">Logout</a>

        </cfdiv>

        <cfdiv id="Content" style=" width:100%;height:80%">

<h2>Here Goes Form and FileUploading</h2>

        </cfdiv>

</cfdiv>

</body>

</html>

<!--  -->

2.FileUpload.cfm

<!-- start -->

<html>

    <head>

        <title>

            Upload A File

        </title>

    </head>

    <body >       

<cflayout type="vbox" name="layout1">

<cflayoutarea>

    <cfform  enctype="multipart/form-data"  action="FileReceiver.cfm" >

                        File To Upload:

                        <cfinput type="file" name="Filename" size="50" >

             <br/>       

                        <cfinput type="submit" name="UploadFile" value="UPLOAD THIS FILE">

                <br/>

        </cfform>

</cflayoutarea>

<cflayoutarea>       

    <table border="1" >

            <tr>

            <th >

                Directory Information

            </th>

            </tr>

            <tr>

                <td>

                <cfoutput >

                    CurrectDirectory Path: #getdirectoryFromPath(expandPath("index.cfm"))#

                </cfoutput>

                </td>

            </tr>

        </table>

</cflayoutarea>

</cflayout>

    </body>

</html>

<!-- -->

3.FileReceiver.cfm

<!---start-->

<cfif isdefined('UploadFile')  >

<cfoutput >

<cffile nameconflict="makeunique"

action="upload"

filefield="Form.Filename"

destination="#getdirectoryFromPath(expandPath("index.cfm"))#" > <!--- or destination="c:\Upload\"--->

        File upload was successful!

</cfoutput>

</cfif>

<!-- -->

when i click on "update link" index page shows the FileUpload.cfm page in one of its container but while uploading file

i always get ERROR MESSAGE:

Error retrieving markup for element cf_layoutarea736558924094373 : Invalid content type: application/x-www-form-urlencoded; charset=UTF-8. [Enable debugging by adding 'cfdebug' to your URL parameters to see more information]

Kindly Help me doing it right...i am unable to figure out problem ...