Parse XML file

How do I get the field info for tags ID, NAME, DESCRIPTION. Below is my current code put I can't get beyond the first_child of the file.

use strict;
use warnings;
use XML::Simplehttp://images.intellitxt.com/ast/adTypes/icon1.png;
use Datahttp://images.intellitxt.com/ast/adTypes/icon1.png::Dumper;
use XML::Twig;

my $t=XML::Twig->new(twig_handlers => {DATA_RECORD => \&dr});
$t->parsefile('C:\\Documents and Settings\fmall\\Desktop\\garth.xml');

sub dr {
my ($t, $dr) = @_;
print $dr->first_child('ID')->text,"\n";
print $dr->first_child('NAME')->text, "\n";
#print $dr->children('DESCRIPTION')->text(), "\n";
print $dr->sibling(1,'DETAILS')->text, "\n";
# print $item->first_child('DESCRIPTION')->text(),"\n";
print "\n";
}

<main>
<DATA_RECORD>
<ID>637</ID>
<NAME>flewatchr_ntfymmscap_up_asuser</NAME>
<FOLDERID>1054</FOLDERID>
<MODIFIED>11/8/2007 5:59:51 PM</MODIFIED>
<DETAILS>
<DEPENDENCY_FILE NAME="flewatchr_ntfymmscap_up_asuser" UID="4CD4ED0C22D5">
<AGENT AGENTTYPE="REMOTE" LOGIC="" UID="C9004C97163C"/>
<DESCRIPTION>I NEED THIS INFO</DESCRIPTION> 
<ATTRIBUTES>
<WATCH_SIZE>YES</WATCH_SIZE>
<VALUE>60</VALUE>
<OPERATION>STABLE</OPERATION>
<SOURCE_PATH>\\fs06\sys\misdata\xfer\backup\ntfmmsup[SYSTEM.VARIABLE.day_number].txt</SOURCE_PATH>
</ATTRIBUTES>
</DEPENDENCY_FILE>
</DETAILS>
</DATA_RECORD>
</main>

$
$ cat garth.xml
<main>
<DATA_RECORD>
<ID>637</ID>
<NAME>flewatchr_ntfymmscap_up_asuser</NAME>
<FOLDERID>1054</FOLDERID>
<MODIFIED>11/8/2007 5:59:51 PM</MODIFIED>
<DETAILS>
<DEPENDENCY_FILE NAME="flewatchr_ntfymmscap_up_asuser" UID="4CD4ED0C22D5">
<AGENT AGENTTYPE="REMOTE" LOGIC="" UID="C9004C97163C"/>
<DESCRIPTION>I NEED THIS INFO</DESCRIPTION>
<ATTRIBUTES>
<WATCH_SIZE>YES</WATCH_SIZE>
<VALUE>60</VALUE>
<OPERATION>STABLE</OPERATION>
<SOURCE_PATH>\\fs06\sys\misdata\xfer\backup\ntfmmsup[SYSTEM.VARIABLE.day_number].txt</SOURCE_PATH>
</ATTRIBUTES>
</DEPENDENCY_FILE>
</DETAILS>
</DATA_RECORD>
</main>
$
$ cat -n process_garth.pl
     1  #!/usr/bin/perl -w
     2  use strict;
     3  use XML::Twig;
     4  my $xml = "garth.xml";
     5  my $twig = XML::Twig->new;
     6  $twig->parsefile($xml);
     7  my $dr = $twig->first_elt('DATA_RECORD');
     8  my $id = $dr->first_child_text('ID');
     9  my $name = $dr->first_child_text('NAME');
    10  my $df = $twig->first_elt('DEPENDENCY_FILE');
    11  my $desc = $df->first_child_text('DESCRIPTION');
    12  print <<"EOF";
    13  ID          : $id
    14  NAME        : $name
    15  DESCRIPTION : $desc
    16  EOF
$
$ perl process_garth.pl
ID          : 637
NAME        : flewatchr_ntfymmscap_up_asuser
DESCRIPTION : I NEED THIS INFO
$
$