The only person that can give you the code is the person who changed it, your daughter. We can't give you the answer because we weren't the ones who played around with your phone and changed the code.
And it doesn't seem you're talking about the default bluetooth codes. GPRS is used for any network connection, including wireless internet.
Connects to: The Internet
Access Point: orangeinternet
That might be of help to you. If it doesn't work, you can go to nokia's website and get the settings over there. Just pick your region and click on support. After you filled out the given fields, your GPRS settings will be sent to you by SMS.