I have not booked any days yet. The link above that you showed works for me, but the usual place I am led to check park availability is the one I'm having problems with. As long as I know there's availability, I'm ok.
My family has not purchased their tickets yet. My AP is due to expire the second day of our trip, so if I can't renew until 60 days before that, I can't make any park ressies beyond the first day, unless I buy myself separate tickets for the other days. And I bet I can't turn them into a renewed AP either! I would probably get charged the full new AP rate.
I think I even confused myself, rereading this! My concern is that I can't make park reservations until I can renew my AP, so I question what the park availability will be 60 days out. The way people are obsessively planning their trips these days, we have to be on top of things!