Since I saw that you have a problem with the root, I decided to ask you another way to root.
1.Install the drivers
artemfomin.blog.tut.by/files/2011/12/ZTE-Android-USB-Driver-5.2066.1.8.rar
or
artemfomin.blog.tut.by/files/2011/12/android_usb_windows.rar
The first driver will generally be sufficient, if not then install other than device menager.
2. Then dovnload ClockWorkMod 5.0.2.0 ZTE Roamer
artemfomin.blog.tut.by/files/2011/12/CWM-5.0.2.3.-Recovery-ZTE-Roamer.rar
and unzip to your desktop.
3. Turn off your phone, then when you turn it on vibrate and hold the menu button and volume-about ten seconds and you're entered in FastBoot, then connect the phone and desktop.
4.Open the folder ClockWorkMod 5.0.2.0 ZTE Roamer that you have unpacked and run. Bat file with pictures
http://dl.dropbox.com/u/50661190/a932c9aa1b8ef99a1f488a38f7295371.png
5. Now you have installed the recovery of fine root. Download file update.zip
artemfomin.blog.tut.by/files/2011/12/update.zip
Copy it to rot sd card, turn off your phone and enter a recovery volume + key combination and the menu,
Go to the zip instal from sd card, and select a update.zip and to it, the phone has a root
Note:
USB debugging must be included