I have a form plugin for WebDorado, I like them, but I like your membership plugin A LOT and trying to get them to work together.
They said I needed to ask;
You need to connect Sign up button with the form page. Firstly publish the from on a page and have the Sign up click action to take it to the mentioned page. If you need help on this you need to ask your plugin developer on where to change the action (hit) URL. Thanks."
Basically, when I have a new visitor want to join my site as one of the membership groups, they go to the registration page, pick the membership they want, click the sign-up button, and then it takes them to Wordpress user registration form, and instead of that form, I'd want the other WebDorado form.