Membership: I followed the instructions, but I´n totally lost!

Hello mates! I installed the membership Plugin and followed the instructions, when I enabled it it didn´t work at least for the "Strangers". Is there a way for you to help me step by step?

I created 3 Levels:

Anonymous (for Strangers)
Registered Members (free)
Executive Members (subscription)

Also the Rebranded Meta Widget was changed (register and my account) and when I disabled the members Plugin it stayed the same so I had to disable the widget also.

I need help please: I already read the instructions here at the plugins page and the instructions on the dashboard that the plugin brings. I am lost! but I want this to work ASAP!!

Thx, Donald.