Worked like a charm for me!

Made sure to NOT be logged on before 6am. At 6am, I logged on using my email and password that I created. Searched for my first restaurant, when it came up, clicked book a reservation. Then clicked 'associate with a vacation reservation' (or whatever the wording is). Put in my vacation confirmation # and phone number, and it said that I'm staying at POFQ from 9/26-10/3 and all the dates on the calendar were unlocked.
Had no problem making any reservations. Got everything I wanted except a few were a half hour or an hour different then what I wanted. The shopping cart only holds 10 reservations at a time so I had to check out after the first 10, and slowly input my bday celebration into each one. After I did it for all of them, I instantly got an email confirmation. I then went ahead and booked the remaining 7 ADRs and did the same thing with the bday.
I was done with all 17 ADRs by 6:35am. Not too shabby.
Now I'm on hold with Disney Dining to book the GF Tea for my mom and I on our arrival day.
Good luck everyone!
*edit to say that I normally use Firefox as my browser but read a few posts saying that it was REALLLY slow. I used Safari on my Mac and it was QUICK! I did get a little nervous after I clicked check out for the first 10 ADRs. It took at least a minute for the confirmation page to come up. But it finally did!