Hi, exactly what part are you having problems with, have you ran the checkinstall and checkfiles pages from the install directory?
A good starting point would be to re-upload the phpvms files again and start from scratch then we can guide you where you are having problems.
If you dont want to do that then depending which version you have on your server download the correct version again and just upload the install directory to check the files and database consistency.
If you need help in doing this then post back, a good start would be what version are you on, did you download a beta or the stable version?