Thanks to recent post by danix, I found working xorg 1.10 compatible legacy 96.xx driver. You can get it at ftp://download.nvidia.com/XFree86/Linux-x86/96.43.20/
(officially released version is 96.43.19). Works fine for me on Debian Wheezy with 2.6.39-2-686 kernel and X.Org X Server 188.8.131.522 (1.10.3 RC 2).
It would be a great idea to check ftp://download.nvidia.com/XFree86/
both for your architecture (x86, x86_64) and driver you need.