Hey TeenCat,
Thanks for reaching out
You are correct about the fact that MC-based sites each have their own affiliate programs, and in the future they will have a chance to opt-in to the global affiliate program. However, access works for all and you don't need to add your information every time, the payouts are merged and sent on one check (or by any other payment method you choose). Your Dashboard when you log in to either program is where you can find stats. Those are per-site as well, but if you email support at modelcentro.com they'll be happy to put together a joint report for you.