Working with CUDA in Microsoft Visual Express

I have downloaded a CUDA code from this link: http://cs.ucsb.edu/~cgb/code/cs290i/multigridInCUDA.zip
The description about this code can be found in http://shatterednirvana.wordpress.com/2007…hods-with-cuda/

I have never worked with Microsoft Visual Express before. After browse through the downloaded folder, but I am not sure where is the code located, or how to view them.