I've been regularly using Netscape 7.1 now. However, the last few days when there have been "new" indicators on some of the Archive sections, when I try to get into them I get:
Unfortunately, the browser you're currently using: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) has security issues with Dark Shadows Forums. Until further notice, in order to access the forum, you must use MSIE 4.0 or later, Netscape 6.0 or later, or Mozilla. We're sorry for any inconvenience this may cause.
I then am able to get in with IE. Besides, it lists 7.1 as one of the "bad" ones, but then says to use 6.0 or later (7.1 is certainly later!).