File upload rename help and thumbnail solid color not actual image

[SpecialFX]

I want the variable $thename to be the name of the uploaded file. I also am trying to make a thumbnail and it makes it and names it properly but its just solid black.

                $file = $_FILES['image']['name'];
                if (substr($file, -3) == 'jpg') {
                        $thename = mysql_insert_id();
                        $target_path =  "./flyer/" . $_FILES['image']['name'];


                    if (is_uploaded_file($_FILES['image']['tmp_name'])) {
                            if (move_uploaded_file($_FILES['image']['tmp_name'], $target_path)) {
                                    $save = './flyer/thumb'.$thename.'.jpg';

                                    list($width, $height) = getimagesize($file) ;

                                    $modwidth = '108';
                                    $modheight = '142';

                                    $tn = imagecreatetruecolor($modwidth, $modheight) ;
                                    $image = imagecreatefromjpeg($file) ;

                                    imagecopyresampled($tn, $image, 0, 0, 0, 0, $modwidth, $modheight, $width, $height) ;
                                    imagejpeg($tn, $save, 100) ;
                            } else{
                                    echo "There was an error.";
                            }
                    } else {
                            echo 'File not uploaded.';
                            echo $_FILES['image']['error'];
                    }

                    mysql_close(); 
            } else {
                    exit('<p>You have not entered all required details or you tried to add a show with a date earlier than today.</p>');
            }