Tell me how to get passwords for a gmail username.

If it's YOUR gmail, you should be able to click on the little button that says "I forgot my password", and an email will be sent to a secondary email address.

If it's NOT your gmail. Account--you're asking us to do something illegal, and we will not be part of that.

What are you asking? Are you trying to get into other peoples gmail accounts? Or are you trying to get into your own which you forgot your password? Please specify.

Are you trying to get a gmail account? If so, I believe that you have to be "invited" by someone who has it. At least, that's how I got mine! :)