when u insert the modem, windows will auto detect new device and launch maxis connections manager.

if not then open file manager see u have new cd rom.

open device manager, see got new hsdpa modem.

"Device Not Detected" mean either usb port problem or modem dongle problem.

u canot install driver unless u fix "Device Not Detected" problem.

Do u got another 3G modem or mobile phone with USB connector ?