Wireless is a pain in the butt with any OS besides windows. Don't jump on ndiswrapper right away; I have seen wireless cards not show up because /etc/network/interfaces has a typo or doesn't have wep set or the module hasn't been added to the repositories. With that said whats the hardware? This will display all your "pci" devices (actually a lot more but...):
Code:
lspci -v | less
If its usb:
Code:
lsusb -v | less
It would help if you would post your /etc/network/interfaces and what you have done.