"1 Preliminary Note
"Make sure that you have OpenVZ set up on your CentOS 5.2 server, for example as shown in this tutorial: Installing And Using OpenVZ On CentOS 5.2
"I've tried this on an i386 system; I don't know if Vtonf works on x86_64 systems as well - the INSTALL file that comes with Vtonf says no, but the Vtonf wiki doesn't mention anything like this..."