Till Brehm has released an essential how-to for installing OpenVZ, the open source version of SWsoft Virtuozzo, on a Linux Debian 3.1 32bit operating system.
It starts from the very beginning step, patching kernel, up to the final goal, building a so-called Virtual Private Server (VPS).
Read it here.
If you are interested in OpenVZ you could find interesting as well my Review of SWsoft Virtuozzo for Windows 3.5.1.