somewhere in kernel, I think under "networking devices" is wireless also.
if your driver is on the list, install it like a module, and if not google for it. after you install drivers, you'll get a module in /lib/modules/linux..../misc or /lib/modules/linux.../kernel/net/ and you can load it with:
"iwconfig -a" will show you all wireless devices if recognized.
"man iwconfig" to see all options.