What is unlock code? could u post those codes for me (any fone codes)?

Theres a sticky at the top of the thread for nokia codes if thats what you after.

Any1 here can tell me how to unlock fone that comes from other countries?

Unlock code is used to unlock your mobile in which your network is locked. If you switch over to another country you are suppose to use the network which is available there. To use that network you should unlock your mobile using unlock code. You can't use your mobile without unlocking it. You can unlock your mobile in http://www.mobileunlocksolutions.com/supported-phones/rs1wp7/ at low cost. They will ask you to provide mobile brand, model number of the mobile, country, network provider and IMEI number of your mobile.