If it says "Please be aware that the entire website - landracing.com, the Forum, and all of the associated bits and pieces...", that's the old site.
If it says "This is the new site! ", it's the new one.
Sorry about the confusion, I can't do some important things, I have to get Dan the guy at the 'old' host to do them for me. He's being very helpful, but there is some coordination required, and even then we can't just flip a switch and make it happen.
This is still the current forum, and stuff posted now will be preserved and transferred over to the new site.