what is the intention of installing an application server to a public html directory? do you like sharing config files and passwords with the world?
Seriously, if you plan to set up a hosted environment with multiple domains and user groups there are much better ways. What do you like to accomplish?
Martin, sorry if i didn't express me clearly. My need is to install OX in a external hosting (like dreamhost). The problem is that i don't have access to install .debs or .rpms, nor to /opt . I have rights only on /home/mydomain.