Is there a way not to archive a single topic, or to bring a topic back from the Archived topics to non archived? I have a few topics that are resouce guides and they go to la La Land when I archive the forum.
You can set a topics "no archive flag" to prevent it from being archived (lock the topic, and check the do not archive box, then unlock the topic making sure the do not archive is still checked).
There is a Mod available (I think) which allows you to unarchive a topic.