I have the DCF-660W card that works on the 2215.
Here are a few steps that should work for you.
Remove the card. Do a remove programs and remove any prior install of the drivers. Do a soft reset. Download the Pocket PC 2002 drivers located here.
http://support.dlink.com/Products/vi...uctid=DCF-660W
Install the drivers. Do a soft reset. Insert the card. Under Settings/System, click the DCF-660W icon and set the network ssid, etc. You may also want to create and save a profile with your settings.
That should be it. After that, inserting the card should automatically connect with your network.