Masking Member ID names with Nicknames

[suplexking]

Im not sure if vbulletin already has this feature because I can't find it in the AdminCP.
But is there a way so that when a user registers, they have to create a forum nickname so that their member id does not display when posting? I searched for a mod but I could not find it. I've seen a few boards like this and I would like to do this with my board.

If there is a mod for this can someone please link me? Or if this is an option in AdminCP can someone please direct me to the right area? Any help is appreciated.

Here's an example where you can create a "display" name for the forums.

http://forum.warrock.net/index.php?act=Reg&CODE=00

(I am not associated with that site nor do I promote it, it is for use of an example)

Thanks.