Re: Question about members page
I just deleted the subdomains that were created with the old system. Then I just put the following in my wp-config.php for WPMU:
define( 'NOBLOGREDIRECT', 'http://mydomain.com' );
That of course needs to be changed to your domain. What that does is take any random requests (in this case old reference requests) and sends them back to my main domain page. This also makes it so you don’t get the fancy signup page for random domains you are trying to register through the address and have to do it through your wp-signup.php page.
Since most registration works better for me through the main buddypress theme signup page, this change didn’t bother me at all. Plus it stopped all the requests giving errors or “signup pages” that came from the old URL’s.
Something to think about…