I was trying to read message under "Ox Bender" - a few listed, at the top it says "Topic is Locked" -- please tell me what that means? Thanks.

When two or more topics are running with the same topic, we lock the newest one and provide a link to the oldest one. If you look at the last post made by me, you'll see a link to that older or original topic. Locked means not further discussion will be allowed in that topic.