I believe you fill out the profile page on the CAE website. And Each week or so FR send a criteria/profile of cadet. E.g this week/month we want guys/gals who are between 22-26 and Italian French and English. That could change to something completely different the week after! CAE will have a system that filters all the info out to match what they're looking for. As for accepting CV's and inputting the data themselves wouldn't be very practical!