installation problem

Hi,
I'm trying to install VTEfree into an online web server but the installation wizard is blocking after the configuration.php file is created: no error messages, no db creation, nothing...
If I reload the installation wizard a blank page appears.
The server is CentOS 5.9 64 bit, suPHP, Apache 2.2.24, MySQL 5.1.70, Php 5.3.26.
What I'm doing wrong?
thank you very much
Regards,

Marco

Is my question too much silly ?