Suggestion: Use Nouveau rather than NV for an open-source NVIDIA solution

Nouveau workes fine for my nVidia GeForce 7050 PV, though indeed without 3D support:

sudo apt-get install nouveau-kernel-source

I then created my own xorg.conf, you can copy and paste mine if you like:

sudo gedit /etc/X11/xorg.conf

Section "Device"
Identifier "Configured Video Device"
Driver "nouveau"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1440x900" "1280x800"
EndSubSection
EndSection

After a reboot the nouveau-driver was used.
BTW please change the resolution modes according to your needs.