How to design the PDF template using Acrobat?

 Hi,     Now we want to design the PDF template using Acrobat. But there is an problem which is confused us for several days.

   For example:
   The following is the XML data:
-------------------------------------------------------------------------------------------------
<<?xml version="1.0"?>
<BOOKLIST>
   <BOOK>
      <BOOK_ID>1000000</BOOK_ID>
      <BOOK_NAME>Gone with the wind</BOOK_NAME>
      <AUTHOR>Margaret Mitchell</AUTHOR>
   </BOOK>
   <BOOK>
      <BOOK_ID>1000001</BOOK_ID>
      <BOOK_NAME>Jane Eyres </BOOK_NAME>
      <AUTHOR>Charlotte Bronte</AUTHOR>
   </BOOK>
</BOOKLIST>
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I open the PDF file and import the xml file from Form->Manage Form Data->Import Data.

then, I add some Text Fields.

But, How I can map the text field with the XML element? In the XML sample in XML publisher builder for word directory, there are some PDF template. But the xml file is a simple format(All elements under root element).