Interesting thread. Let me address some of your concerns.
First, the reason some forums are combined into other forums is because we want to be LESS picky about where you post what. The old forums had gotten to the place that they were very segmented. While the regulars knew where to put stuff, anyone newer had a harder time figuring out our system. So post where it seems to fit most. We don't mind.
There are a number of important reasons why we changed hosts, some of which are immaterial to this discussion. The reason we archived the old posts is twofold. 1. The old db was huge and error prone. Apparently a previous host's software had damaged the db and it was a constant problem. We couldn't have a stable forum and keep the old db. 2. We didn't want to lose all the old info, so we archived it. Given the situation, I think it's the best way to fix the problem without losing all the old info.
And, as to the domain change, it didn't change.
Part of the package we got with the new host was a domain. It was easier to put this up with the new domain; next we'll redirect the other domain here. So both domains will be for the Taurus Car Club of America.