I need a TWAIN driver for a Canon CanoScan N670U. I got a new hard-drive on my laptop and am

Question

I got a new hard-drive on my laptop and am trying to reinstall my scanner, a CanoScan 670U. It tells me I need a TWAIN driver to install this software. Where do I get the right one for my XP Home Office system?

I have Window Vista in my laptop.I installed TWAIN DRIVER for canoscan N670U. when Itry to scan a window appears saying UNABLE TO OPEN TWAIN SERVER. Can anybody help me pl.