Session Login fails

[Anon]

Hi, i wrote a script to login and maintance a web page, on my Windows box all works fine, but if i upload and try to log in, my script takes me back to the login screen, this means that i'm not logged in ;o) what can i do? is there anything wron in the code ?

$sql = mysql_query("SELECT pass FROM $usertable WHERE name = '$lnick'");
$fetch_em = mysql_fetch_array($sql);
$numrows = mysql_num_rows($sql);

  if($numrows != "0" && md5($lpasswd) == $fetch_em["pass"]) {
     $sessnick = $lnick;
     $sesspasswd = md5($lpasswd);
     session_register("nick");
     session_register("passwd");
     ?>
     <meta http-equiv="refresh" content="1; URL=admin.php">
     <p>Hallo <b><? echo $sessnick; ?></b>!!!</p>
     Du wirst weitergeleitet....

     <?
  }
  else {
     session_unset();   // Unset session variables.
     session_destroy(); // End Session we created earlier.
     ?>
     <meta http-equiv="refresh" content="3; URL=admin.php">
     <p>Die Daten waren leider falsch.</p>
     Du wirst weitergeleitet....</p>
     <?
  }

why doesn't it work?

[Anon]

Sorry it must be:
$sessnick = $lnick;
$sesspasswd = md5($lpasswd);
session_register("sessnick");
session_register("sesspasswd");

but keeps not workin'

[Anon]

I'm not sure if it will help, but you might try registering the session variables first and then assigning them values.