I have my minibb hooked up to another script that handles the login/logout, so I disable/hide the minibb login at the top of the minibbb homepage. That's easy enough for me to do, but what I'd also like to know how to do is hide the buttons that say Sign In/Post Message and Preview (I use Preview) on the post form at the bottom of a page when someone is visiting but not logged in. Did I mention that my forum is for registered members only?

Not sure if this is an easy customization or not. I hope I have described it clearly. Any advice appreciated.

The other solution, of course, would be to hide the entire post form when someone is perusing the forum but not logged in. Is that possible?

Yes, you need to hide the form completely, as with no login fields it does not make sense.

Take a look here for this.

Perfect. Thanks so much, Paul!