Yes, for the most part they are. See this thread for more info:
Also, try clicking "Memberlist" at the top, click your name in the list, then click the link called "Find all posts by Aswapati". Most of those are the messages you wrote on TwistyMegasite.
There are still ~5000 messages written by ~500 unique usernames which haven't been converted to the new ranking system yet because I haven't been able to match them up with any of the registered TwistyPuzzles members. This may sound like a lot, but about 25% of them are all one person, and I suspect there will always be somewhere between 2000 or 3000 that never get matched up because the authors are no longer around.
After a few months go by, I will probably publish a list of all non-converted messages in one final attempt to convert as many of the rest as possible.