Ask the person who owns the network. If they won't give it to you, then you have no right to use the network. If it's your network, reset the router and set a new password.
ok ...here we go again.......how do we know u are genuine? .....boring stuff .....once again....... tom's --> can u set up a filter?--> add 'wep" + 'password' to previous list - please, if possible, dont ask us to flag these!