Error en imagenes dinamicas

[repara2]

La imagen se muestra pero el formato parece incorrecto. Checklist:
1. Comprueba que el png existe
2. No utilices "enie" (lo siento pero tengo teclado alemán) en los índices de $_POST
3. Comrueba el nombre y la ruta de la fuente utilizada
4. COmprueba los siguientes mensajes:


Notice: Undefined index: peso in /var/www/test/imagen.php on line 20

Warning: imagecreatefromjpeg(e) [function.imagecreatefromjpeg]: failed to open stream: No such file or directory in /imagen.php on line 24

Warning: imagesx() expects parameter 1 to be resource, boolean given in /var/www/test/imagen.php on line 26

Warning: imagesy() expects parameter 1 to be resource, boolean given in /var/www/test/imagen.php on line 27

Warning: imagecopyresized() expects parameter 2 to be resource, boolean given in /var/www/test/imagen.php on line 29

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 31

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 32

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 33

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 34

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 35

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 36

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 37

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 38

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 3

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 41

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 41

Warning: imagettftext() [function.imagettftext]: Could not find/open font in /var/www/test/imagen.php on line 42

Salu2!!