Got a problem with editing login register page

[quote]
What I did was:

-Remove link to admin stylesheet.
-Add link to my current theme’s stylesheet.
-Add in my own markup to specify my header and general layout (you may have to view the source of one of your normal pages if you’re unfamilar with how yours goes).
-Remove all references of “id=login”, “id=email”, etc etc that refers to something that was obviously in the admin CSS.
Change <div id=”login”> to <div id=”entry”>
-Save, upload, and basque in its glory!

**Remember, you must do all the above steps twice – once each in two different locations. Browse through wp-login.php to find that “two” actual pages are really in there.
[/quote]
I got these errors

Warning: extract(): First argument should be an array in /home/*******/public_html/********/wp-includes/functions.php on line 1733

The error refers to this line in wp-includes/functions.php

extract($wp_query->query_vars);

Any help?