Roadblock When One Page Calls ANother to Log In Users

When accessing a page called "Create Users", it checks that the user doing just that is properly logged in--this is part of the admin section of the site, not the public end. If not, it sends one to a page created by "login.php". There one is met by instructions to type in a username and password, then press a button labeled "Login". Upon pressing the latter, a box lowers from the top of the screen; it contains the instruction to select a username from a list [of all the usernames I'd previously used in the books earlier exercise]. When I choose one, it and a password appear in the appropriate fields. I then press "Login" again and the process repeats--i.e., the fields are cleared and the box lowers from above with the instructions to type in a username and password, then press a button labeled "Login". I'm using Netscape 7, and when I go to Tools --> Password Manager --> Manage Stored Passwords and clear the stored passwords, I am no closer to anything working. In fact, after pressing the login button after filling in the username and password fields produces nothing at all until I try a few times and some usernames accumulate and thereby send the window down from the top of the screen. Would anyone be willing to take a look at the coupla files to see if I've messed up the code? Thank you. Steve Tiano