I've tried to install in awardspace.com but all I've got were error 500 pages. So I tried another server, 4000webs.com, where, again, I had (minor) problems.
When I tried first, I could only see a blank page. Since the other pages were redirecting me to install.php, I assumed it was a problem with install.php. Commenting parts of the code, I discovered that the problem wasn't install.php, but admin-functions.php (included by upgrade-functions.php). After I take it off (commenting the require_once(ABSPATH . '/wp-admin/admin-functions.php'); line), install.php showed up "normaly".
Since today weather is good and I'm a happy person, I've run install.php WITHOUT admin-functions.php - and, somehow, it worked.
However, I can't enter in the administration area because it needs admin-functions.php - or, at least, I suppose so.
How can I put everything working? Is the server the problem?
PS: after this attempt, I did the same thing to awardspace.com, but it still not works. Evil awardspace, evil 4000webs