Thanks for your support. I have created the generic folder and then change "PATH_INFO" to "ORIG_PATH_INFO" in the file: class/core/Request.inc.php as advised in some threads in the forum.
The installation went smoothly and the home page look very attractive. The problem is that I cannot log in to the system using the administration account created during the installation process. I have met this problem last time when I installed OJS on another hosting package and had to leave the software.
I think that there is some compatibility problem of OJS and my server but I cannot figure out what it is. I am quite sure that I remember the admin user name and password. I have had the password reset too, but the problem remains.
Could you have a look at http://www.consal14.org/demo/openjournal/
If you need access to the foler where OJS is installed, I will send it to your e-mail.