Looks like the same issue as this thread:
http://www.displaylink.org/forum/showthread.php?p=75244
I've tried running the installer designated for Vista on the CD that came with my package as well as the latest version from the site: 7.6M2. After running the installer (which doesn't give a confirmation of completion as far as I can tell) I plug the USB device in and it's shown as a Samsung Host Ready USB Device.
The output of Gather Support Information from the Support Tool is attached.
Thanks!