htc p3400i -ROM-upgrading-problem-pls-help-me

[bsvinod]

I am trying to upgrade my HTC P3400i from WM6 to WM6.5

I am following the step by step guide for ROM Upgradation/flashing

My PC is W7X64 Home Basic
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Step 3: Prepare your Computer (Please pay attention, this is crucial!)
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XP Users
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There is not much you need to do. Just open task manager and kill the Active Sync executable from the processes tab. Its named as wcescomm.exe.

Vista/Windows 7 Users
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You need to take these steps :

1. Go to desktop, right click Computer, and select Manage. Go to Device Manager. Now under the section Mobile Devices, Double Click : Smartphone USB Sync.

2. On the Drivers tab, click "Update Driver..." button. On next screen click : "Browse my computer for driver software".

3. Click : "Let me pick from a list of device drivers on my computers". Click "Have Disk.." on next screen. Click "Browse..." and go to the folder extracted in step 1. There, go to USBDriverforActiveSyncVista folder. Here select the file "wceusbsh.inf" and click OK.
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My system is Windows 7x64 & Windows Mobile Device Center 6.1 the above driver is not working for me
what i hav to do...which driver i have to use...will u pls give me a link....Many many thanks in advance......................
The error i am getting shown in screen shot
Device Manager -screen shot--
Pls Help Me