Is your school out already? If not, well, do whatever you can to get her to fill the info in (don't be a nuisance, though!).
If your school is out already, and you honestly think she will look in your form and say you haven't done what you claim, you could try to contact her through e-mail OR simply wait until after Summer.
BTW, I believe you can send in your transcripts (if it is an Official transcript) by mail or e-mail (you probably got a thin package with 7ish envelopes to send in files, right?)
Don't sweat over it, though. I mean, class rank would be great to have in, but if you can't, I don't think that will be that much of an issue.
I mean, it is better to way and get it set up correctly than try to rush it in and have some attrition on the way.
Good luck!