We have many who come to the site and want to register as a customer even though they are not making a purchase on this visit.
Zen-Cart gives everyone the opportunity to sign up when they are making a purchase. It also has several locations where they can "unsubscribe" to the newsletter.

What we need is to know:
1. Are the newsletter and the customer databases one and the same?
2. Is there a way to provide a link to those that want to register without a purchase?
3. Are these settings someplace in the admin section, or do we need to add/change code?

Thanks to all who help. We've tried a whole lot of things. Don't know if we have exhausted all possibilities, but it feels like it.

ALG