This might just be a work-around for you, but thought I'd suggest it as I am probably going to do something similar with a splash page!
If you are hosting your web domain elsewhere, and it has some webspace available on it with FTP access (or if you can access your WA webspace with WebDav), you could use that webspace to create some external pages which will do the job you are talking about. E.g. create a splash page that users see first when they go to your site (before getting to the WA site).
On that splash page, you could place three things:
-an "Enter site" link for public (non-members who want to view your site) with link to WA site (to view public pages only)
-your WA login widget (for members)
-under/near that, a link that says "Not a Member? Join Now". Rather than linking directly to your WA registration form, you would instead link to another page that is probably a form (also stored on your external site or a third-party form site) with your disclaimer text on it. There should be an "I Accept" button or "Return to Main Page" button. If a user clicks "I Accept" you could then link to a page with your member registration widget from WA (or put a direct link to WA registration page if you know the address). If the user does not agree, boot them back out to your splash page so they are aware that they are going back to enter as a non-member.
Melanie
Canadian Paralegal Institute