Download and install the PC Suite from here:
OT-980/ OT-980A / Downloads / Global / Home - ALCATEL Mobile Phones
It will prompt you to plug in the OT-980 during the install and your PC will then find the Qualcomm HSUSB device drivers.
I've installed the PC Suite on a couple of Windows 7 PCs. I don't know if it will work on Vista or XP.