I have a US Robotics Megahertz 56k PC Card Modem (Model #: XJ1560, Serial #: 1105N1a873036) with XJACK connector which I purchased some years ago to use with my Hewlett Packard 620LX Palmtop PC running on Windows CE 2.0. I would like to know is this card is compatible to Microsoft Windows XP and if it can be used with newer mobile devices running on Mobile 2003 OS. Also, are there updates, drivers, etc. for this card. Please let me know.