New Post: Using CopyIntoItems to copy fields (document copy is successful)

I'm new to SharePoint development and using jquery for SP, so I'm having some difficulty with the following code:

    function copyItem(){
var srcurl="randomdirector.docx";
var desturl="randomdirectory.docx"; 
$().SPServices({
  operation: "GetItem",
  Url: srcurl,
  completefunc: function (xData, Status) {
    var itemstream = $(xData.responseXML).find("Stream").text();
    var itemfields = [];
    $(xData.responseXML).find("FieldInformation").each(function(){
      itemfields.push($(this).get(0).xml);
    });

    $().SPServices({
      operation: "CopyIntoItems",
      SourceUrl: srcurl,
      DestinationUrls: [ desturl ],
      Stream: itemstream,
      Fields:itemfields,
      completefunc: function (xData, Status) {

      }
    })
  }
});

The documents come over and show the "this is a linked document" with the "go to source" option available, etc. However, the only metadata field which seems to work actually go over is the Name field. Do I need to explicitly specify which fields are to be copied? Also, I'm not sure that the documents themselves are being copied since I have files, tables, etc. in the original document and none of those appear in the copied document despite there being an apparent link between the two.

Any suggestions are appreciated.