well my site isn't that large, < 100,000 messages. the deleted forum contained about 5000 posts, so i am guessing it won't take too long. is it a matter of getting the last POST_ID and TOPIC_ID autoincrement values, then appending from the backup POST table to the current POST table, checking each message to see what forum (FORUM_ID in TOPICS table) it was posted to? (as if that wasn't complex enough!)
