Okay, things are clear now. I apologize because I got confused until I found the cradle which accepts a full size PCMCIA card. I thought you had a SD or a CF sized WIFI card as mine does. Compaq got around that by making a cradle for the regular full size PCMCIA cards.

I found a driver but the site links to a Japanese site that I can't read and the other is for Win2000 only. Is your system XP? The question lies in how a Pocket PC 2002 OS will accept a XP or Win2k driver. I presume the Active Sync or bundled software can manage the PCMCIA function of the expansion pack.
Send me an email so I can try sending you some driver packages as I find them.