Preventing child forums from updating Last Post
 

Greetings all,
Searching for some of this has yielded mostly what I already know. And I am still a little stuck. I'm willing to accept that this can't be done, but I''m going to ask anyway...

In our forum we have a general chatter forum call Everything Else. Under that is a child forum that is "Thunderdome". Thunderdome is a permission controlled forum that only members of a select usergroup can access.

/ -> Everything Else -> Thunderdome

Works like a charm. Except that on the forums index, the "Last Post" for Everything Else is updated by Thunderdome and that Last Post text is visible to anyone. Is there a way to keep Thunderdome from updating the Everything Else's Last Post when viewed from the main index page?

Thanks!