Well, I'm not an expert in PHP, but I do this.
I have running an Apache Web Server over Windows NT 4.0 Server, I've sucesesfully
installed PHP as module, and I just redirect the extesions path and uncomment the php_mssql.dll in the extensions section. All this in the php.ini
I've developped a little news application in VB, so, I do the changes that I want, and
automatically the changes are showed on my Web page !!
I do not have to use the ODBC's Drivers !
Regards