CPV
For phpVms to work correctly, it has to be installed correctly. It's successful operation depends upon various factors such as - is your system being installed on free hosting or on paid hosting. Is the php server version you are trying to install your management system on version 5.0 to 5.5.
it should be as simple as downloading phpvms, expanding it into a temporary directory then using an ftp client to upload it to the server. Watch for a public_html folder on the server...it has to be installed there, then the installer run.
after that, if you have errors, you should post them - that way, you stand a very good chance of receiving help.
good luck