Before you begin be sure that all OpenVMware stuff has been uninstalled

Unistall open vm tools

yum remove open-vm-tools -y

Install epel

yum install epel-release
yum update

yum install perl gcc make dkms kernel-headers kernel-devel -y

That's it now mount the VMware Tools Iso. Extract the tar file and run

cd vmware-tools-distrib
./vmware-install.pl