Ok, thanks for the screenshot and the information.
This shows the devices listed in my Device Manager with the phone attached...
...I would ignore the ZTE prefix as I imagine that is due to the Elitemovil ROM I am using.
The drivers that I used are simply the ones that came from the unlocking tutorial...
I never needed to install anything different to unlock the phone or back up the required file for QPST to work or then install CWM. As you have noted you did the same and had full communications with your phone during the unlocking process but that seemed to go messy during completion of the restoration of the backup file by the QPST software.
Why don't you...
Unplug the phone.
Uninstall the QPST 2.7 software.
Reboot the phone.
Install the Handset_USB_Driver with the device manager tree open.
Note that the device is correctly identified as illustrated in the above screenshots.
Ensure that you have not got a firewall preventing communication to the phone when plugged in, I had to disable mine.
Run the CWM installation file "install-recovery-windows.bat" from the Post-Unlock folder
Post back any issues when doing the above
EDIT: Just to add that I too would not have been happy with the message you noted at the end of the restoration of the QCN file. I have unlocked two of these phones using the noted method and both went fine with no such problems. Whether it has any relevance at this stage I'm not sure. But let's see how you go on with the above.
Edited by dibbles, 03 December 2011 - 04:50 PM.