How do we make a one to one appointment ( not genius bar) one to one ( already paid for, but can't navigate to appointment page?

Did you get a link when you did it?

Your One to One Page

When you sign up for One to One, you get your own web page, where you can make reservations, read tips and tricks, write notes, and view sample projects.

http://www.apple.com/retail/one-to-one/

The reservations are made online; if you have trouble navigating it, the trainers can help.

http://bettymingliu.com/2012/01/how-to-use-apples-one-to-one-program/

Is this the link you need?

https://supportprofile.apple.com/