Someone suggested to use POST. I changed the code to post. It still does not work. Any clue?

#!/usr/bin/perl -w

use strict;
use LWP;

my $browser = LWP::UserAgent->new;

my $response = $browser->post('http://www.abebooks.com',
   ["sts" => "t", 
    "an" => "", 
    "tn" => "Codex Seraphinianus",
    "kn" => "",
    "isbn" => ""
   ]
);

die "Error: ", $response->status_line, "\n" unless $response->is_succe
+ss;

my $out_file = "result_seraph.html"; # where to save it
open(OUT, ">$out_file") || die "Can't write-open $out_file: $!";

binmode(OUT);
print OUT $response->content;
close(OUT);
[download]