Good times for all!
Your chipset as you have found is an Intel Pro/Wireless 2200. This chipset does not have any drivers built into the kernel at this time. However, the folks at Intel have some people working on developing a driver that works pretty well for the most part.
It involves three things: Downloading Firmware, updated ieee802.11 drivers, and the actual ipw2200 drivers.
Firmware and Intel Drivers can be found at:
ieee802.11 drivers can be found at:
These are relatively easy to setup.
Compile/install the ieee80211 drivers, install the ipw2200 firmware, and then compile/install the ipw2200 drivers.
Give it a shot, and head back here if you run into problems. Good luck!