problema con php5

[juglar]

quiero empezar a estudiar php5, y empecé con el 4 y me iba bien, me salía el insertar, delete, etcc..
Me he pasado al php5 y he instalado el wamp5, pero a la hora del mysql, no inserta ni borra, lo he puesto con código del php5, pero en los campos me aparece directamente la variable del campo.
¿he instalado mal el wamp? de que puede ser....
Una ayudita para meterme en el mundo del php5

Saludos y gracias por todo

[jam1138]

10. My MySQL scripts don't work anymore with WAMP5 1.4.* / MySQL 4.1.*

Since MySQL 4.1.*, the password encryption method has changed in MySQL, you cannot use the mysql functions to connect to your server (if you have a password). You should now use the mysqli extension (and the mysqli_* functions).
If you really need to use the mysql extension, you have two solutions. First, really simple, is to add

old_passwords

at the end of your mywamp.ini file (located in your windows directory). Restart your server and that's it, you'll be able to connect to your server.

Second solution is to use the old_password() function to change your mysql user's passwords. More info about this in the MySQL documentation :

http://dev.mysql.com/doc/mysql/en/old-client.html

http://www.wampserver.com/en/faq.php#q10