Miised code in function "Login"/ Version of Cake is 0.1!

At first - I know, the version 0.1 is not uptodate, but I need to repair login on site.
In future I planned to upgrade Cake, but know, please, help me!
in directory ‘controllers’ I found file ‘user_controller.php’ with function LOGIN like this:

function login() {

When user put login and parol, it is nothing.

as I understand, it make no job. And near are some other functions, INDEX and LOGOUT, that have a code.

It’s a puty, but I am not web-coder, I am administrator.