Those are all old URLs from wayyy back that would have been converted to /topic/ which have now been converted to /threads/. The /topic/ threads from the old forum do convert to the new uRLs.It's quite a few, actually. Some folks end up here by doing gewgle image searches and when you try to come here to view the thread from the image you were interested in, you get the "Oops!" message. I checked a few more random threads of mine from years back, many aren't working. Hope this helps.