No white cicle in sculpt mode

I don’t get a white circle in sculpt mode in Blender 2.55 and I have it turned on below where it shows the brush, I mean down where it say’s Display. Also for some reason I can’t get the crease or pinch tool to work. I need to put rinkles on an oldmans face. I don’t really understand the sculpt tool completely and I can’t find a tuorial that really go’s into detail on how they adjust and how they work.:spin:

Thanks so much in advance I have always gotten help here.

Here is good tutorial.