My b2evolution Version: Not Entered

Hi all,

This must be easy to solve, I'm a newbie so I hope to get some help.

How do I display only ONE blog?
I've just installed version 2.4.2 and I see "Blog all; Blog A; Blog B; Linkblog; B&C"

I only want the blog (or subblog?) B&C to be visible.
How do I do this?

Thx,
Chris