Michel hasn't updated my copy of b2, boo. Anyway, the comments thing should NEVER redirect to the front page, in my opinion -- perhaps you could make the redirect an option, because you never know who wants what.

Another thing (not sure if this is already resolved): but on some b2 weblogs, URLs and e-mail addresses need to be input into the comment forms otherwise b2 will croak an error. I'm doing speed typing, hence the three quick posts.