For some reason or another I have no recycle bin/trash folder in my 18.104.22.168 installation. I went to the site map and hit 'show system pages' and there's nothing matching either of those. At some point I was using the discussion forum and had deleted a test topic with some posts. It appears the pages for those posts still exist but I have no real way to get to them. Is there some way to bring them back or delete them completely?
I did... And it took a lot of research to figure it out (and I hope I'm remembering correctly). The issue was that I was using my account (which was an administrator) and not the actual site administrator account. For reasons little-well known, the trash page is hidden by default from anyone but the site admin. I can't remember the post that gave me the pointer but you have to go into the permissions and add Administrators to the access list for the trash. If I can find the link, I'll give it. I hope that's enough to get you started down the right path.