You are usingNOKIA 3110 classic to connect to Internet. It is very simple to connect.
1.you need a data cable and pc suite
installed in your pc [ download it from www.nokia.com for free]
2. connect the phone and pc via USB data cable.
3.you will see a message in your phone "data cable connected". press OK.
4.then select "NOKIA MODE" and open your pc suite software form your pc.
5. in pc suite select option "CONNECT TO INTERNET" and now you can surf Internet on your pc.