Ricky, the nvidia graphics drivers have nothing to do with SATA.
If you want SATA support, you'll need to install a recent kernel.
If CentOS does not have recent kernels, you have to build on yourself.
The sources are on kernel.org. A good guide for building your own kernel was written by Greg KH, Linux Kernel in a Nutshell. A book, that you can download from his site.