Immagine non si vede

[Leviathan73]

Salve a tutti, ho quato codice

echo "<form action=\"genproc.php?action=mkroom&amp;sid=$sid\" method=\"post\">"; 
    echo "Room Name: <input name=\"rname\" maxlength=\"30\">
"; 
    echo "Password: <input name=\"rpass\" style=\"-wap-input-format: '*x'\" maxlength=\"10\">
"; 
    echo "Pic Url: <input name=\"pic\" maxlength=\"255\" value=\"http://\"/>
"; 
    echo "<input type=\"Submit\" name=\"Create\" Value=\"Create\"></form>"; 

questo

$pic = mysql_escape_string($_POST["pic"]); 
$pic = htmlspecialchars($pic); 
        $res = mysql_query("INSERT INTO ibwf_rooms SET name='".$rname."', pass='".$rpass."', censord='".$cns."', static='0', lastmsg='".time()."', pic='".$pic."'"); 

e infine questo

$rooms = mysql_query("SELECT id, name, pass, pic FROM ibwf_rooms WHERE static='0'"); 
        $co=0; 
        while ($room= mysql_fetch_array($rooms)) 
        { 
$ilink = trim($room[3]); 
  if($ilink=="") 
  { 
   $ilink = "<img src=\"default_image.gif\" alt=\"*\"/>"; 
  }else{ 
   $ilink = "<img src=\"$ilink\" alt=\"*\"/>"; 
  } 
            $co++; 
          if(canenter($room[0], $sid)) 
          { 
            $noi = mysql_fetch_array(mysql_query("SELECT COUNT(*) FROM ibwf_chonline WHERE rid='".$room[0]."'")); 
            if($room[2]=="") 
            { 
              echo "$ilink <a href=\"chat.php?&amp;rid=$room[0]&amp;sid=$sid\">".htmlspecialchars($room[1])."($noi[0])</a>
"; 
            }else{ 
              echo htmlspecialchars($room[1]); 
              echo "$ilink <form action=\"chat.php\" method=\"get\">"; 
              echo "
<input format=\"*x\" name=\"rpw\" maxlength=\"10\"/>
"; 
              echo "<input type=\"submit\" value=\"GO\"/>"; 
              echo "<input type=\"hidden\" name=\"rid\" value=\"$room[0]\"/>"; 
              echo "<input type=\"hidden\" name=\"sid\" value=\"$sid\"/>"; 
              echo "</form>"; 

            } 
          } 
        } 

il problema è che quando carico un immagine non si vede, sapete perchè?