step1: make sure connectivity b/w PC and W-03.
if you have trouble while connecting w-03 to pc, refer to next entry of today.
step2: install/update modem driver
http://wssupport.sharp.co.jp/download/ws003sh/usb_driver/
step3: connect via modem
http://blog.goo.ne.jp/mypda/d/20061117
if you trial is for the first time, create connection setting on pc.
