Validation email and behavior for eNewsletter

Great plugin so far.I have a few questions.

1. Where can I change the status message that appears in the widget after registering. Currently it says that they have been registered; however, I would like to message that a verification email was sent.

2. Where can I change the verification email message? I would like to customize and brand it.

3. Is there a way to have the validation redirect to my homepage instead of a blank page?

thank you!