Getting contact address with membership on paypal standard
Sounds like you don't have any profiles enabled on the form. You can start with the basic name and address one CiviCRM comes with out of the box or create one of your own to collect the fields you're after.

You just click on the profiles tab when managing the contribution page to enable the one(s) you'd like members to complete when they register.

Here's more information about CiviCRM profiles: http://book.civicrm.org/user/current/organising-your-data/profiles/