Hi.
I see some sites that uses this feature.
It's like a popup/ajax feature on the top and its mostly yellowish.
It says It appears you are not login or please register. :P

How Do I enable this?
Thanks.

As a licensed vB customer you can download this: http://www.vbulletin.org/forum/showthread.php?t=123117

Thanks Floris, thats actually a pretty nice hack!

yeah, thanks,i ahve check this too