This is one of the problems we as moderators have that's we've being trying for ages to fix. Once a moderator moves a topic to the trash we can't move it back. We're requested extra permissions for the trash area numerous times but have yet to be granted them. Until we get these permissions I suggest you to harass the admins saying that Mr Happy (or Whoo obviously) would have done it but he doesn't have permission to.

Sorry but we can't help