Welcome to the monastery! Incidentally, we tend not to email users answers as that would prevent anyone else from getting helpful hints.
An HTTP 404 means that you've asked your webserver for a file which it can't find, for whatever reason. The file may not be where you're telling the server to look (e.g. a different directory), it might have a different filename, or it simply may not exist.
However, as you're just starting with this, I'd recommend installing Xampp
, because it makes things really very easy for the beginner. Try getting used to the test/example scripts available, and then try using your own.
Kids, you tried your hardest, and you failed miserably. The lesson is: Never try.