How to get a file with <CFFTP>

I am trying to grab a file and move it to the coldfusion server using <CFFTP> The server in which I am trying to grab the file is a sftp server. I am running coldfusion 8. When I run my code, I dont get an error, I just get a blank white screen, yet the file has not been moved. I will post my code below, does anyone know what I am doing wrong?

<!--- Open conncetion with remote sftpserver --->

        <cftry>
            <cfftp action="open"
                connection="ftpServer"
                server="server.com"
                username = "username"
                password = "password"
                fingerprint = "11:11:B5:F2:11:AF:C2:E2:31:11:D3:B4:11:83:11:11"
                timeout="20"
                port="22"
                secure = "yes" />
            <cfcatch>
                <cfset throwFileTransferFailed("Could not open connection. Message: " & cfcatch.Message & ". Detail: " & cfcatch.Detail)>
            </cfcatch>
        </cftry>

<!--- get the file --->

        <cftry>     
               <cfftp
                action="getFile"
                connection="ftpServer"
                server="server.com"
                username="username"
                password="password"
                remotefile="TEST_20100816.csv"
                localfile="C:\WENS_DEV\pdf\"
                failIfExists="no">
            <cfcatch>
                <cfset throwFileTransferFailed("Could not open connection. Message: " & cfcatch.Message & ". Detail: " & cfcatch.Detail)>
            </cfcatch>
        </cftry>