That's not a helpful post either.
kripz, I strongly suggest you NOT validate username and passwords through URL's. Instead, pass them through a form and in your auth script, check with your database if the username and passwords match.
In your database, have a query similar to:
SELECT username, password FROM userpass WHERE username='$username' AND password='$password'
If there are results, then the user is a valid user. Of course, you might want to do more robust checks, but that would be one simple way of doing it.
If you really want to have a url the validates a user, I suggest you send a random key instead of clear text username and password.
