The driver will be in a .ZIP format, so open that file and drag the contents to your desktop.
Run the "TabletDriver_8Expresskey_16Softkey" file now on your desktop to install the HUION driver software. Make sure you've closed all other applications before installing.
Follow the installer instructions and leave all settings on the default selection
After the installer runs, you will now have a shortcut to the HUION Tablet software on your desktop labelled "PenTabletDriver"
You can find instructions on how to use the tablet and it's accompanying software at HUIONs website or here.