Create partitions as follows:

/ 10GB
/vz remaining space
swap – 2GB + total memory

Login as root, and cd
wget http://download.pvc.parallels.com/47/lin/vzinstall-linux-x86_64.bin
chmod +x vzinstall-linux-x86_64.bin
yum install vzkernel (needed for mkinitrd install – find a better way?)
cd /etc/yum.reposd/
wget ftp://ftp.muug.mb.ca/mirror/centos/6.6/os/x86_64/Packages/compat-libstdc++-33-3.2.3-69.el6.x86_64.rpm
rpm -ivh compat-libstdc++-33-3.2.3-69.el6.x86_64.rpm
./vzinstall-linux-x86_64.bin (install pva agent at end, reboot, and wait for startup (around 10 minutes)).
cd
yum update

Additional notes: