Need help on logging into and using metasploitable.

I've tried searching the entire web for the commands that allow me access inside but i cant find any.

First is this: Metasploitable Login:

Then I use 'msfadmin' as username and password here to get the next line: msfadmin@metasploitable:~$

What next now...

This seems like a noob question, but i just cant get any proper answer to this anywhere..
Could someone please give me a complete tutorial on how to use metasploitable. I have the metasploitable on one VMware workstation and backtrack5 on another VMware workstation.

How do i configure metasploitable...
I posted this question on another forum but got very little detail on how to use metasploitable.

Seriously need an immediate answer to this as soon as possible!!

Thnx