First, is your wireless card detected? Try running lspci at the command prompt and posting output of it here.
sorry, i m very new to the linux. Do i type in exactly what you said "lspci"? I tried and it says command not found. I was typing lspci under localhost""" should i cd to somewhere like the root before doing "lspci"?
I don't know if I should pick up all the basics before worrying the configuration of the wireless network. However, i do know the 101 stuffs such as "man, ls, mkdir, " .. basic stuffs like that.