DELPHI 2010 - XML HOW TI FIND A NODE OR ELEMENT

SORRY FOR MY BAD ENGLISH. I JUST SEARCH THE ANSWER FOR MY QUESTION BUT I DON'T FIND THE SOLUTION. I HAVE THIS FILE XML AND I HAVE TO FIND THE NODE 'MessageSenderCode' AND READ THE VALUE '1VOC'. HOW THE BEST WAY TO DO IT ?

<?xml version="1.0" encoding="utf-8"?>
<CD815A xmlns:xsi="http://ift.tt/ra1lAU" xmlns:emcs="http://ift.tt/1mXXfv5" xmlns:tms="http://ift.tt/1t94Rfu" xmlns:tlc="http://ift.tt/1mXXiHg" xmlns:doc="http://ift.tt/1mXXfv9" xmlns:ie="http://ift.tt/1t94OAm" xsi:schemaLocation="ie815.xsd">
    <tms:HeaderMessage>
        <tms:MessageSenderCode>1VOC</tms:MessageSenderCode>
        <tms:OfficeReserved/>
        <tms:FlowName>1VOC20140716_C04.xml</tms:FlowName>
        <tms:OfficeReserved/>
        <tms:OfficeCode>134000</tms:OfficeCode>
        <tms:OfficeReserved/>
        <tms:VATAutorizedSender>00701720260</tms:VATAutorizedSender>
        <tms:OfficeNumberAutorizedSender>001</tms:OfficeNumberAutorizedSender>
        <tms:OfficeReserved/>
        <tms:RecordFlowNumber>4</tms:RecordFlowNumber>
    </tms:HeaderMessage>
    <ie:BodyMessage>
        <ie:SubmittedDraftOfEaad>
            <tms:Header>
                <tms:MessageCode>IE815</tms:MessageCode>
                <tms:DeclaratorIdentifyCode>IT00TVA00042S</tms:DeclaratorIdentifyCode>
                <tms:IdentifyDraftCode>159/2013</tms:IdentifyDraftCode>
                <tms:TransmissionFileDate>20140716</tms:TransmissionFileDate>
                <tms:RecordType>A</tms:RecordType>
                <tms:RecordNumberInFile>0001</tms:RecordNumberInFile>
                <tms:RecordNumberFile>0001</tms:RecordNumberFile>
                <tms:TotalRecordB>00</tms:TotalRecordB>
                <tms:TotalRecordC>002</tms:TotalRecordC>
                <tms:SubmissionMessageType>1</tms:SubmissionMessageType>
            </tms:Header>