Why don't you go and try? I know as of a couple weeks ago I was definitely able to transfer points to miles on the old site, which is somewhat related, though obviously not the same thing. But given that nothing having to do with miles works on the new site, it would imply that various things having to do with miles might work on the old site still. But since I'm not interested in earning miles directly from Choice stays (at least before Nov 11 when the current points promo ends), I didn't try (and am not planning to try) changing my own earning preference.