Just done some research and a stock rom does not seem to be available
But all is not lost
First you will need to root your phone like so (Originally posted by sd_james on XDA Forum

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here) -
1 - You need to install the latest Android SDK -
Here
2 - Download
SuperOneClick v2.3.3 (Mirror here
SuperOneClick v2.3.3 incase main sites down)
3. Follow the instructions and make sure that you have set your Settings > Development > USB Debugging box checked. I also set Unknown sources checkbox on.
4. Type in the following code on the phone keypad
*#*# 2846579 #*#*
This will open up the Service Mode
Go to Project Menu > Background Settings > Log Settings
Turn on Log Switch and set Log Level Settings to Verbose
go back one screen
Go to Dump and Log and place a check in all log settings.
Reboot the phone
After reboot use superoneclick2.3.3
In superoneclick on the general tab click the root button and wait for it.
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Next you will need to install a recovery image like so -
TURN off the phone. Install the drivers for your computer so that the phone will be recognized. \
Driver download:
AndroidHandsetUsbDriver_v1.0
You also want to download the clockwork mod:
RecoveryClockmodByZaDkYn
Once you download the drivers and the clockword mod. Run "instalador.bat" Press any key and it will say "waiting for device."
Turn off your phone and connect the USB cable (**MAKE SURE DRIVERS WORK (AKA YOU CAN USE THE USB FILE TRANSFER TO SD, ETC**)
The instalador.bat command prompt should recognize your phone and install a custom file on the phone that will enable a custom recovery boot if you press volume down +power for 10 seconds (while phone is off)
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Now you can install the (Almost) stock rom
Download this -
ATTPlain
This is a modded stock rom based on the AT&T firmware version U8652V100R001USAC07B840 - Android 2.3.4 which has been stripped down (full details here -
http://androidforums.com/sonic-all-things-root/503393-improved-t-fusion-stock-rom.html
Copy the rom to your SD card and then turn off your phone. Restart your phone by holding the volume down and power keys then install the rom from the SD Card.
Original tutorial(ish with a bit of adjustment from me) here -
http://androidforums.com/sonic-all-things-root/513780-huawei-fusion-u8652-roms-c7-mod-root.html
Hope this helps you, it should get your phone working again at least