Has anyone used this with the Palm 700wx? 

Technically, it should work but we no longer carry it because of lack of demand. You could either use SDW-820 (SD card) or SDW-821 (miniSD WiFi card but be sure to add a SD adapter card option to adapt the size of the miniSD wifi card to a SD Card).

So I bought the SDW-820 from you guys last week. The CD didn't work so I pulled the drivers off of SPECTEC's web site. The card works, somewhat. When inserted, the treo 700wx see's what it is and an icon on the top of the screen appears like a wifi antenna. And it actually connects. But When I go to surf the internet, it doesn't work. I turn the phone off, so it doesn't access broandband service, but it still doesn't connect to the internet. I can't find a setting to change what service the internet explorer or Opera Browser uses to connect to the internet. 

Hi. You may have to re-configure the settings to use the correct profile / network for programs that connect to the Internet.

Under your Start | Settings | Connections tab | Connections icon, and select the correct profile under the drop down menu. The section should say something similar to this "Programs that automatically connect to the Internet should connect using:" under the Network Management page.

Hope this helps.