Stealth Login 3.0.0 Problem

Hi all!
I have WP 3.5.1 installed and Stealth Login 1.1.2 working perfect!
I decided to update Stealth Login to 3.0.0 and problems started… The url for login stopped working, so I decided to re-install 1.1.2 and everything back to normal!
Then I putted version 2.0.0 and still works well, the url is recognized, so I decided to update it for 3.0.0 from 2.0.0 and broke again, no url redirect to login!
Now I’m with 2.0.0 for get it working but I would like to update it to 3.0.0, why doesn’t work with this most recent version?

http://ww.wp.xz.cn/extend/plugins/stealth-login-page/