Drivers For Rotronic Can Anyone Help Me In Finding SkyWin Drivers For Vista?

Can anyone help me in finding SkyWin drivers for Vista? - drivers for rotronic

I Rotronic cordless phone that comes with a USB dongle and software SkyWin. It does not work with XP, but does not work with Vista. Once your drivers are installed, the red phone icon with a white cross in the taskbar with the error message "Unable to find USB dongle. If someone could send me the drivers or have lead me to a relevant website, thankful .