U have not mentioned which network operator u r using, if from india u need to take prior activation for gprs or if u have prepaid account u have to send activation code to the respective operator for gprs enabling.
You can get the Settings From Service Provider....
U have to do this call in the costomer service center they will give u setting of GPRS do it
contact operator ... or gimme operator name
Hi for the GPRS setting you have to add a new connection by going into the settings menu and after that for server and port information you have to contact BSNL customer care as they only would be able to guide you regarding server and port number and after that you can connect to internet using EDGE available in your phone.