SOLVED: I am pretty sure after testing that was caused the "NEXT" button issue was the version of PHP. The one in my server is 5.2.17 and doesn't work. The one that uses XAMPP is 5.3.1 and it works! I also tested in Android tablet and phone using KSWEB and also works! it uses PHP 5.4.8 ... Since I am going to use it offline this is fine for me.