hello, sorry if i missed this...
I can suggest you to switch to XML::Twig? I was in a fix in choosing the rigth tool and now i'm very happy with this one.

Here the proposed solution using XML::Twig

#!/usr/bin/perl

use strict;
use warnings;
use XML::Twig;

my $t= XML::Twig->new( pretty_print => 'indented',
                    twig_handlers => {
                          #'Domain'=>sub{$_[1]->print,"\n";}, ##print 
+the raw xml
                          'Domain'=>sub{print $_[1]->att('Name'),' exp
+ires ',$_[1]->att('Expires'),"\n" ;},

                    }
);
$/='';
$t->parse(<DATA>);
__DATA__
<?xml version="1.0" encoding="utf-8"?>
<ApiResponse Status="OK" xmlns="http://api.namecheap.com/xml.response"
+>
  <Errors />
  <Warnings />
  <RequestedCommand>namecheap.domains.getList</RequestedCommand>
  <CommandResponse Type="namecheap.domains.getList">
    <DomainGetListResult>
      <Domain ID="8888888" Name="Domain1.com" Expires="03/31/2015"/>
      <Domain ID="8888889" Name="Domain2.com" Expires="02/25/2015"/>
      <Domain ID="8888899" Name="Domain3.com" Expires="04/01/2015"/>
      <Domain ID="8888999" Name="Domain4.com" Expires="05/20/2015"/>
    </DomainGetListResult>
    <Paging>
      <TotalItems>4</TotalItems>
      <CurrentPage>1</CurrentPage>
      <PageSize>50</PageSize>
    </Paging>
  </CommandResponse>
  <Server>API02</Server>
  <GMTTimeDifference>--5:00</GMTTimeDifference>
  <ExecutionTime>0.008</ExecutionTime>
</ApiResponse>

__OUTPUT__
Domain1.com expires 03/31/2015
Domain2.com expires 02/25/2015
Domain3.com expires 04/01/2015
Domain4.com expires 05/20/2015
[download]

HtH
L*