iStat in menu bar? Is that possible?

I recently saw here in MacRumors a screen grab where the user appeared to have a few parts of iStat (namely processor performance and temp) constantly dispalyed in the menu bar.

How can I do this?

 

Could someone please at least reply to me?

I've been on these forums for two weeks and no-one has EVER replied to ANY of my threads or posts - I'm beginning to wonder if anyone can even see them.