I'm confused? what should I pick to get 2.66?

Hi my name is paolo, I just got the new version of Blender (2.67) however CUDA version 1.3 is already not supported for the GPU rendering in blender cycles. I dont have enough money to buy a new GPU so I decided to go back to the most recent version which is 2.66, but I got this links which look exactly the same. So I’m quite confused, what should I pick if I’m running windows 7 64 bit?

either blender-2.66a-windows64.exe or zip - you will want the 2.66a for the bug fixes