Tink hit it right on the money. Send checks to all the schools that require fees. Some schools require other information (this has nothing to do with secondaries), so double check those requirements and get that info out if needed.
The next step is to wait for secondaries. I was in the first batch for AADSAS last year (I was the number 8 applicant in the nation, or something like that), and my app. was sent to schools 6 weeks after I submitted it.
After AADSAS told me they had sent it out, I received 3 secondaries two days later, and 4 secondaries two days after that.
Once the flood gates open they really open. Be prepared for that.
Good luck!