It looks like the Zonet website is undergoing some sort of revamp of their drivers download page. When I tried searching the link they provided to use in the mean time, your product was not there. I tend to try to find drivers from the company themselves but did find a third-party site with drivers. I scanned and checked out the drivers using my company's corporate AV and it failed to detect viruses. Please navigate to the below link and download the drivers. You can then use the Add/Remove hardware wizard under the Control Panel to install the drivers from the location you unzip this file to.

http://driverscollection.com/?file_cid=39352695063df92b915a0ba8fc3

You can also use the setup.exe to install the software although I can't guarantee the program it installs is worth installing.