Thanks for the info Steve.
We moved the site and forum to a new server yesterday and there are still a few bugs we're working out, and we have a few more graphical updates to the forum coming today. I do see that the forum avatars are missing. I will investigate.
We also implemented a new single-signon function from the main aha site to the forum, so if you're email addresses are synced up between your AHA account and Forum account, we auto log you in.
When you saw the wrong name in the header, had you logged in via the web site, or via the forum?
Please continue to let us (or me directly) know about any bugs you encounter.