I wanted to try open office 3.3 after a long gap.  I used it when it was 2.0, but later to install it you need admin privileges, which I do not have.  I found below entries, which explain clearly how to install with out admin rights.  They do work:

http://user.services.openoffice.org/en/forum/viewtopic.php?f=74&t=12426&sid=6ca36398e6f4881f3bcc689f27fcc9cc

http://www.oooninja.com/2009/03/openofficeorg-3-install-portable-how.html