Bravo List - Problem with poll

Hi, i have small problem with poll
I can't vote in poll.... when i vote it not show a result!

and there is my poll.php
Code:

if (!defined('BLOCK_FILE')) {

 Header("Location: ../index.php");

 exit;

}



global $CURUSER, $tracker_lang, $ss_uri;



  // Get current poll

  $res = sql_query("SELECT * FROM polls ORDER BY added DESC LIMIT 1") or sqlerr(__FILE__, __LINE__);

  if($pollok=(mysql_num_rows($res))) {

          $arr = mysql_fetch_assoc($res);

          $pollid = $arr["id"];

          $userid = $CURUSER["id"];

          $question = $arr["question"];

          $o = array($arr["option0"], $arr["option1"], $arr["option2"], $arr["option3"], $arr["option4"],

            $arr["option5"], $arr["option6"], $arr["option7"], $arr["option8"], $arr["option9"],

            $arr["option10"], $arr["option11"], $arr["option12"], $arr["option13"], $arr["option14"],

            $arr["option15"], $arr["option16"], $arr["option17"], $arr["option18"], $arr["option19"]);



  // Check if user has already voted

          $res = sql_query("SELECT * FROM pollanswers WHERE pollid=$pollid AND userid=$userid") or sqlerr(__FILE__, __LINE__);

          $arr2 = mysql_fetch_assoc($res);

  }



  $blocktitle = $tracker_lang['poll'].(get_user_class() >= UC_MODERATOR ? " - [".$tracker_lang['create']."]".($pollok ? " - [Labot] - [Dzēst]" : "")."" : "");



        if($pollok) {

          $content .= ("$question
\n");

          $voted = $arr2;

          if ($voted) {

            // display results

            if ($arr["selection"])

              $uservote = $arr["selection"];

            else

              $uservote = -1;

                        // we reserve 255 for blank vote.

            $res = sql_query("SELECT selection FROM pollanswers WHERE pollid=$pollid AND selection < 20") or sqlerr(__FILE__, __LINE__);



            $tvotes = mysql_num_rows($res);



            $vs = array(); // array of

            $os = array();



            // Count votes

            while ($arr2 = mysql_fetch_row($res))

              $vs[$arr2[0]] += 1;



            reset($o);

            for ($i = 0; $i < count($o); ++$i)

              if ($o[$i])

                $os[$i] = array($vs[$i], $o[$i]);



            function srt($a,$b) {

              if ($a[0] > $b[0]) return -1;

              if ($a[0] < $b[0]) return 1;

              return 0;

            }



            // now os is an array like this: array(array(123, "Option 1"), array(45, "Option 2"))

            if ($arr["sort"] == "yes")

                usort($os, srt);



            $content .= ("\n");

            $i = 0;

            while ($a = $os[$i]) {

              if ($i == $uservote)

                $a[1] .= " *";

              if ($tvotes == 0)

                      $p = 0;

              else

                      $p = round($a[0] / $tvotes * 100);

              if ($i % 2)

                $c = "";

              else

                $c = " bgcolor=\"#eeeeee\"";

              $content .= ("\n");

              ++$i;

            }

            $content .= ("" . $a[1] . "   " .

                "
                "\"> $p%
\n");

            $tvotes = number_format($tvotes);

            $content .= ("Votes: $tvotes
\n");

          } else {

            $content .= ("\n");

            $i = 0;

            while ($a = $o[$i]) {

              $content .= ("$a\n");

              ++$i;

            }

            $content .= ("");

            $content .= ("".$tracker_lang['blank_vote']."\n");

            $content .= ("
");

            $content .= ("
");

          }

        if ($voted)

          $content .= ("".$tracker_lang['old_polls']."
\n");

        } else {

            $content .= "";

            $content .= "".$tracker_lang['no_polls']."
\n";

            $content .= "
";

        }

?>