Thanks you so much, now i have all the urls of a file from my wiki using this method.
sub getFileArchive {
        mw_connect_maybe();
        my $filename = shift;
        my $query = {
                action => 'query',
                prop => 'imageinfo',
                titles => $filename,
                iilimit => 4,
                iiprop => 'url',
        };
        my $result = $mediawiki->api($query);

        my ($pageID,$page) = each (%{$result->{query}->{pages}});
        if (defined($page->{imageinfo})) {
                while (my $urlFile = pop(@{$page->{imageinfo}}))
                {
                        my $host = $urlFile->{url};
                        print "$host\n";
                }
        }
}

Logged in with user "WikiAdmin".
http://localhost/wiki/images/archive/0/07/20120609160413%21Toilamduoc.png
http://localhost/wiki/images/0/07/Toilamduoc.png

But now how i can download these files, the method dowload seem to be not able to download the files from the archive?
Thanks.