Adding more questions to Wordpress blog mu's registration form and accessing it

[patmagpantay]

I am creating a blog for multiple people/users using wordpress blog mu, It works great! But I would like to tweak it a little, how do I add additional questions on the registration form? And how do I access the information gathered from the database? I would like to add the to the registration form things like the users age , state , birth date, hobbies, etc. After they have filled up the form I want to have access to this information as well.