wireless network card for my 380xd

[GLE3]

I'm a noob at wireless networking so any help would be appreciated...

I'm trying to get my hands on a card with a 802.11g standard that will work on my Thinkpad 380xd. It has PCMCIA 2.1. I have found cards that are 2.1 but they also say they require a 2.2 PCI interface. Could someone help me out on how I can find out what PCI interface I have?

[GLE3]

Here is the card:

http://www.geeks.com/details.asp?invtid=HWC54G&cat=NBB

Please help! Thanks.