You can use the plugin to display events & sell tickets on any page of your blog.
No, private or password protected events will not appear.
Go to SimpleTix.com
First sign up for accounts on Paypal.com or Google.com, then update your SimpleTix site. The buttons will automatically appear.
Yes, the end-user can select the checkout link on the shopping cart page. They will be redirected to your normal checkout page where they can choose Pay at the Door or Pay by Invoice