I am having mulitple problems with Events+, these are with booking an event, paying for an event, no

Hello, please can you help us?

We are having major problems with this plugin, so my questions are;

1. When someone tries to book an event they are forced to enter their Wordpress logins. How do I switch this off for someone who wants to book and pay for an event? We are not using the membership for the events booking, the events are open to the general pubic.
2. For some reason the events are only showing for the current month are we want them to show for the full year, how do I change that?
3. How do I integrate Facebook Events?
4. How do I allow people to login via Twitter or Facebook?

Please let me know if you need access to the website to help to resolve these issues.