how to setup blog posts in blogs-mu

I am very new and confused...I don't know how to get member's blog posts to appear within the main root site like is shown in the theme sample like this: http://imm.io/WOX
Here is my site url: http://aceofsalesforum.com/
Please tell me what the heck I am doing wrong b/c I know I am doing alot wrong. Thanks so very much.

Pam