This is a pretty simple-minded example how you might do this using LWP::UserAgent and HTML::Parser:

#!/usr/bin/perl -w

use strict;

use LWP::UserAgent;
use HTML::Parser;
use URI;

my $starturl = shift || die "No url supplied\n";

my $baseuri = URI->new($starturl);

my @urls ;

push @urls,$starturl;

my $agent = new LWP::UserAgent;
my $parser = HTML::Parser->new(api_version => 3,
                               start_h => [\&start ,"tagname, attr"]);

$agent->agent("Gelzilla/666"); 

while( my $url = shift @urls)
{
  my $request = new HTTP::Request 'GET' => $url;

  my $result = $agent->request($request);

  if ($result->is_success) 
  {
      print $result->as_string;
      $parser->parse($result->content);
  } 
  else 
  {
     print "Error: " . $result->status_line . "\n";
  }
}

sub start
{
   my($tag,$attr) = @_;
   if ($tag eq 'frame' ) 
   {
      my $thisuri = URI->new($attr->{src});
      push @urls, $thisuri->abs($baseuri);
   }
}
[download]

Of course you are going to have to make your own arrangements for displaying things properly :)

/J\