Please note the Intel(R) PRO/Wireless 2200BG Network Connection is in an "End of Interactive Support" (EOIS) status.
2200BG Support Product Site: http://www.intel.com/support/wireless/wlan/pro2200bg/index.htm
EOIS Notice (accessible from 2200BG Support Product Site): http://www.intel.com/support/wireless/wlan/pro2200bg/sb/CS-031137.htm
Regarding installing or upgrading Intel(R) wireless adapters:
Installing or upgrading the various Intel wireless adapters by end users is not supported by Intel. There are many reasons for this. I recommend that you review the information at http://www.intel.com/support/wireless/wlan/sb/CS-031167.htm and http://www.intel.com/support/wireless/wlan/sb/cs-006006.htm.
Please refer to the above documentation and let me know if you have additional questions.