Nvida driver - can't find nvidia module

Question

Finally went out and bought an nvidia geforce 6600Gt video card.
But guess what now I can't install the dam thing.
I followed the arch wiki but all I get is
Installation starts now ...
FATAL: Module nvidia not found.
If you need more information about setting up nvidia drivers have a look at:
"http://wiki.archlinux.org/index.php/How to install NVIDIA Driver"
modprobe nvida gives the same results. I thoght pacman -S nvida is supposed to install the kernel modules so how com e it can't find them ?
I even created a /usr/src/linux symlink to the current kernel - still not working. So what's going on I thought nvidia drivers were supposed to be really easy to install ????

Answer 1

The error message when I run pacman -S nvidia is shown in my first post.
I do not have a custom kernel I have pacman -S kernel26 (kernel-2.6.11.3-ARCH)
Do I need to install kernel full kernel sources with ABS for nvidia to work ?
I did try this but he kernel failed to build (can't remember why now)
Here's the last part of nvidia-installer.log incase that helps
usb-storage: device scan complete
   Disabled Privacy Extensions on device c05d68a0(lo)
   lp0: using parport0 (interrupt-driven).
   nvidia: no version for "struct_module" found: kernel tainted.
   nvidia: version magic '2.6.11.3-ARCH SMP preempt K7 gcc-3.4' should be
   '2.6.11.3-ARCH SMP preempt 686 gcc-3.4'
   nvidia: version magic '2.6.11.3-ARCH SMP preempt K7 gcc-3.4' should be
   '2.6.11.3-ARCH SMP preempt 686 gcc-3.4'
   nvidia: version magic '2.6.11.3-ARCH SMP preempt K7 gcc-3.4' should be
   '2.6.11.3-ARCH SMP preempt 686 gcc-3.4'
   nvidia: version magic '2.6.11.3-ARCH SMP preempt K7 gcc-3.4' should be
   '2.6.11.3-ARCH SMP preempt 686 gcc-3.4'
ERROR: Installation has failed.  Please see the file
       '/var/log/nvidia-installer.log' for details.  You may find suggestions
       on fixing installation problems in the README available on the Linux
       driver download page at www.nvidia.com.