Anyway, I've run into one problem none of the posts here or on s2styles have an answer to -- when you reply to an entry, it looks like the same old Component, with the userpic on the left, etc. I figure I need to rewrite the ReplyPage::print_body() function to include my modifications -- but I don't know what else needs to go in there (like the bar after the entry and before the reply form).
As an example, see http://www.livejournal.com/users/brucha/42748.html and http://www.livejournal.com/users/brucha/42748.html?mode=reply for the differences. My code is publically viewable, available here -- any help, please?