I wouldn't do it at this upcoming "conference". Our first P/T conference last year was 15 minutes with conferences scheduled before and after all day. It was pretty much a "let me explain this report card to you because, after all, you're obviously not able to read it for yourself". Yours might not be that way. I'd have the conference, indicate at the end that you would like to schedule a meeting and that you'll be contacting her about it. She's probably got 20 P/T conferences the same day as yours so I wouldn't even try to schedule the meeting then. Just let her know you'll be getting in touch with her.