XML Change/Add in certain area's

[HaHaItsJake 25]

Hello Ubotters, 

I have the following completed: 
If XML contains a Table Cell Value(ID) 

 

Now I'm trying to 

If the ID is in the XML, then add a child under the last Child node of the ID

If the ID is NOT in the XML, I want it to create a new element under the last element. 

 

I search the XML ID list with xpath praser for ID: R103828466

 

ID is in XML 

It then will go to that element, go under the last Data(Child) Element, and insert a new "Data" child element. 

 

ID is NOT in XML

It then will go to the very last "Member" element and insert a new "Member" Element with the Attributes then add a Data(Child) Element under the new Member element.

 

Then I'm also trying to change a certain Attribute. 
Change R103828466 MemberUntil value.

I think I'm missing something that is common, but XML with UBot is new to me. 

XML: 

 

<?xml version="1.0"?>
<AccountManager>
  <Member id="R103828466" MemberSince="2014/09/09" MemberUntil="12/31/3030">
    <Data id="1" Last="2014/10/05" Amount="34">
    </Data>
  </Member>
  <Member id="R104950769" MemberSince="2014/08/25" MemberUntil="12/31/3030">
    <Data id="1" Last="2014/10/06" Amount="46">
-------------------------------------------------------If the ID is in the XML, then add a child under the last Child node of the ID
    </Data>
  </Member>
  <Member id="R105836511" MemberSince="2014/09/24" MemberUntil="12/31/3030">
    <Data id="1" Last="2014/10/05" Amount="20">
    </Data>
  </Member>
  ----------------------------------------------------------If the ID is NOT in the XML, I want it to create a new element under the last element. <Member> NOT <MembershipDetails> With the child "Data".
  <MembershipDetails>
<Membership id="Rare">
</Membership>
  </MembershipDetails>
</AccountManager>

Regards, 
HaHaItsJake

 

[HaHaItsJake 25]

Any insight would be helpful. I have tried everything I could think of and came up with a complicated work around for now using the basic Ubot commands. 

Regards, 
HaHaItsJake