As above - to connect to a wireless internet signal the phone needs to be equipped with a wifi reciever - like the N80 and N95. The N73 (which is what I have) doesn't have wifi, so sadly you can't do that
Chap at work just got the N95 and we tried the wifi out yesterday and eventually found an unsecured wireless network in one of the streets we were working in

Tried to get on youporn but the phone doesn't support the correct webbrowser for the Java applet it needs to watch the vids