If anyone is still after a V1.1, the eBay link below goes to where I bought mine. It turned up fairly quick and works absolutely fine. I had ghost touches and some touch wasn't working at first but after I ran the sony calibration tool (also linked) everything is fine. I got a Pro 3 1631 for free with a broken screen and was determined to get it working so it's a total result for me :-)
I had the latest touch firmware installed prior to installation. It might work for other versions but if you have a V1.1 then this should sort it. Good luck!
http://www.ebay.co.uk/itm/281775551482?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Software:
http://esupport.sony.com/US/p/swu-download.pl?mdl=SVF15N190X&upd_id=9338&os_group_id=27