How can I make it so that a guest can click on a forum (i.e. General Discussion), see a topic (i.e. Your Thoughts On The Year 2009), but when they click on the thread it takes them to a sign-in/register screen? Basically, I want them to be able to see topics being discussed, but not to read posts in the threads unless they are members.

I thought I had done this a couple days ago, but apparantly not. I can only make it so it lets them open and see the threads, or not see any thread topics. I need something in the middle. Hope this makes sense.

Sorry,but this is not possible at the moment.