I installed a fresh wordpress copy and enabled multisite option adding wpconfig.php lines and modifying .htaccess.
You can see the installation here: http://www.nflnews.it
After that, I added a wildcard subdomain through cPanel and used "Blogs And Users" plugin for creating a bunch of network blogs which are supposed to be reachable through domains such:
Unfortunately, I can't get the subdomains to work (I get a 404 error)
I double checked with my hosting provider, and they say every configuration seems ok (which is cool, but doesn't help...)
I must say that the installation IS NOT in root, but in a subfolder like /public_html/myaccount/nflenews.it and this is where my wildcard points to (this is also ok, according to my provider).
Do you have any hint? I'm stuck.