Do you have the CD that came with the phone? There is an application on there that has the drivers you need as well as a software interface to help you transfer files.
Download the application called "Join Me" and dont forget to remove the phone from the USB cable prior to installing the application.
In case you dont have the CD, here is a link to the application.
http://www.zte.co.nz/downloads/softw...nMe_PC_B14.exe
Here are the instructions
http://www.zte.co.nz/downloads/Join_...tion_guide.pdf