WordPress MU

Hi All,
As I am designing my site I was wondering if there is a Use Case on adding a new user/blog? What is the process and where is the new blog located? Is is possible to have a dir structure like so:

members/ ## where the main login is located
member1/ ## where member1's blog is located
member2/ ## where member2's blog is located

Can the new user/blog be created programaticly? I'm going to have members join my site and when they do I want to create a blog for them "behind the sceens".

I did see the paragraph on the mu home page:

"Using WordPress Multi-user edition you will be able to people be able to sign up for a new blog and have them securely manage their templates and settings without affecting any other users. Only one blog per user is allowed, but you can have unlimited users, and you can have multiple users on a single blog."

I'm just looking for something a little more descriptive(detailed).

Thanks,

Andrew

My first post didn't keep the formatting that implied that the members1 & 2 dirs are sub dirs to members.

Thanks,

Andrew

wpmu works that way:

yoursite.com/blog1/

or

blog1.yoursite.com

so it can also be:

yoursite.com/blogs/blog1/

the front page of wpmu can be:
"yoursite.com" if you give your users a "yoursite.com/blog1/"
etc...